Wednesday, July 31, 2019

Bacteria and Growth Temperature

INTRODUCTION The environments of Earth include conditions in which physical and chemical extremes make it very difficult for organisms to survive. Conditions that can destroy living cells and biomolecules include high and low temperatures; low amounts of oxygen and water; and high levels of salinity, acidity, alkalinity, and radiation. Examples of extreme environments on Earth are hot geysers and oceanic thermal vents, Antarctic sea ice, and oxygen-depleted rivers and lakes. Organisms that have evolved special adaptations that permit them to live in extreme conditions are called â€Å"extremophiles. â€Å"Photo by: Dmitry Pichugin â€Å"Thermophiles† are microorganisms with optimal growth temperatures between 60 and 108 degrees Celsius, isolated from a number of marine and terrestrial geothermally-heated habitats including shallow terrestrial hot springs, hydrothermal vent systems, sediment from volcanic islands, and deep sea hydrothermal vents. -Encyclopedia of Environmenta l Microbiology, 2002. vol. 3. Temperature and bacteria The lowest temperature at which a particular species will grow is the minimum growth temperature, while the maximum growth temperature is the highest temperature at which they will grow.The temperature at which their growth is optimal is called the optimum growth temperature. In general, the maximum and minimum growth temperatures of any particular type of bacteria are about 30 °F (-1 °C) apart. Most bacteria thrive at temperatures at or around that of the human body 98. 6 °F (37 °C), and some, such as Escherichia coli, are normal parts of the human intestinal flora. These organisms are mesophiles (moderate-temperature-loving), with an optimum growth temperature between 77 °F (25 °C) and 104 °F (40 °C).Mesophiles have adapted to thrive in temperatures close to that of their host. Psychrophiles, which prefer cold temperatures, are divided into two groups. One group has an optimal growth temperature of about 59 ° F (15 °C), but can grow at temperatures as low as 32 °F (0 °C). These organisms live in ocean depths or Arctic regions. Other psychrophiles that can also grow at 32 °F (0 °C) have an optimal growth temperature between 68 °F (20 °C) and 86 °F (30 °C). These organisms, sometimes called psychrotrophs, are often those associated with food spoilage under refrigeration.Thermophiles thrive in very hot environments, many having an optimum growth temperature between 122 °F (50 °C) and 140 °F (60 °C), similar to that of hot springs in Yellowstone National Park. Such organisms thrive in compost piles, where temperatures can rise as high as 140 °F (60 °C). Extreme thermophiles grow at temperatures above 195 °F (91 °C). Along the sides of hydrothermal vents on the ocean bottom 217 mi (350 km) north of the Galapagos Islands, for example, bacteria grow in temperatures that can reach 662 °F (350 °C). pH and bacteriaLike temperature, pH also plays a role in dete rmining the ability of bacteria to grow or thrive in particular environments. Most commonly, bacteria grow optimally within a narrow range of pH between 6. 7 and 7. 5. Acidophiles, however, prefer acidic conditions. For example, Thiobacillus ferrooxidans, which occurs in drainage water from coal mines, can survive at pH 1. Other bacteria, such as Vibrio cholera, the cause of cholera, can thrive at a pH as high as 9. 0. Osmotic pressure and bacteria Osmotic pressure is another limiting factor in the growth of bacteria.Bacteria are about 80-90% water; they require moisture to grow because they obtain most of their nutrients from their aqueous environment. Examples of Extreme Communities Deep Sea. The deep sea environment has high pressure and cold temperatures (1 to 2 degrees Celsius [33. 8 to 35. 6 degrees Fahrenheit]), except in the vicinity of hydrothermal vents, which are a part of the sea floor that is spreading, creating cracks in the earth's crust that release heat and chemical s into the deep sea environment and create underwater geysers.In these vents, the temperature may be as high as 400 degrees Celsius (752 degrees Fahrenheit), but water remains liquid owing to the high pressure. Hydrothermal vents have a pH range from about 3 to 8 and unusual chemistry. In 1977, the submarine Alvin found life 2. 6 kilometers (1. 6 miles) deep near vents along the East Pacific Rise. Life forms ranged from microbes to invertebrates that were adapted to these extreme conditions. Deep sea environments are home to psychrophiles (organisms that like cold temperatures), hyperthermophiles (organisms that like very high temperatures), and piezophiles (organisms adapted to high pressures).Hypersaline Environments. Hypersaline environments are high in salt concentration and include salt flats, evaporation ponds, natural lakes (for example, Great Salt Lake), and deep sea hypersaline basins. Communities living in these environments are often dominated by halophilic (salt-loving) organisms, including bacteria, algae, diatoms, and protozoa. There are also halophilic yeasts and other fungi, but these normally cannot tolerate environments as saline as other tax. Deserts. Deserts can be hot or cold, but they are always dry.The Atacoma desert in Chile is one of the oldest, driest hot deserts, sometimes existing for decades without any precipitation at all. The coldest, driest places are the Antarctic Dry Valleys, where primary inhabitants are cyanobacteria, algae, and fungi that live a few millimeters beneath the sandstone rock surface. Although these endolithic (living in rocks) communities are based on photosynthesis, the organisms have had to adapt to long periods of darkness and extremely dry conditions.Light dustings of snow that may melt in the Antarctic summer are often the only sources of water for these organisms. Ice. Permafrost, and Snow. From high-altitude glaciers, often colored pink from red-colored algae, to the polar permafrost, life has evolved t o use frozen water as a habitat. In some instances, the organisms, such as bacteria, protozoa, and algae, are actually living in liquid brine (very salty water) that is contained in pockets of the ice. In other cases, microorganisms found living on or in ice are not so much ice lovers as much as ice survivors.These organisms may have been trapped in the ice and simply possessed sufficient adaptations to enable them to persist. Atmosphere. The ability for an organism to survive in the atmosphere depends greatly on its ability to withstand desiccation and exposure to ultraviolet radiation. Although microorganisms can be found in the upper layers of the atmosphere, it is unclear whether these constitute a functional ecosystem or simply an aerial suspension of live but largely inactive organisms and their spores. Outer Space.The study of extremeophiles and the ability of some to survive exposure to the conditions of outer space has raised the possibility that life might be found elsewhe re in the universe and the possibility that simple life forms may be capable of traveling through space, for example from one planet to another. Research Findings Newfound gene may help bacteria survive in extreme environments Resulting microbial lipids may also signify oxygen dips in Earth’s history. Jennifer Chu, MIT News Office July 26, 2012 A newly discovered gene in bacteria may help microbes survive in low-oxygen environments.A bacterial cell with the gene, left, exhibits protective membranes. A cell without the gene, right, produces no membranes. Image: Paula Welander In the days following the 2010 Deepwater Horizon oil spill, methane-eating bacteria bloomed in the Gulf of Mexico, feasting on the methane that gushed, along with oil, from the damaged well. The sudden influx of microbes was a scientific curiosity: Prior to the oil spill, scientists had observed relatively few signs of methane-eating microbes in the area. Now researchers at MIT have discovered a bacterial gene that may explain this sudden influx of methane-eating bacteria.This gene enables bacteria to survive in extreme, oxygen-depleted environments, lying dormant until food such as methane from an oil spill, and the oxygen needed to metabolize it become available. The gene codes for a protein, named HpnR, that is responsible for producing bacterial lipids known as 3-methylhopanoids. The researchers say producing these lipids may better prepare nutrient-starved microbes to make a sudden appearance in nature when conditions are favorable, such as after the Deepwater Horizon accident.The lipid produced by the HpnR protein may also be used as a biomarker, or a signature in rock layers, to identify dramatic changes in oxygen levels over the course of geologic history. â€Å"The thing that interests us is that this could be a window into the geologic past,† says MIT Department of Earth, Atmospheric and Planetary Sciences (EAPS) postdoc Paula Welander, who led the research. â€Å" In the geologic record, many millions of years ago, we see a number of mass extinction events where there is also evidence of oxygen depletion in the ocean.It’s at these key events, and immediately afterward, where we also see increases in all these biomarkers as well as indicators of climate disturbance. It seems to be part of a syndrome of warming, ocean deoxygenation and biotic extinction. The ultimate causes are unknown. † Welander and EAPS Professor Roger Summons have published their results this week in the Proceedings of the National Academy of Sciences. This image shows that 5 different extreme environments that the extremeophile live. Such as, Sea Vennts at sea floor, Yellowstone Hotsprings, Antartica Subglacial Lakes, at Atacama Desert, and lastly at Jupiter (Space).Europa is one of Jupiter’s moons, and is covered in ice. Scientists have recently uncovered strong evidence of liquid water beneath Europa’s ice, which may be due to hydrothermal vent s, which may in turn host bacteria. Credit: Nicolle Rager Fuller, NSF REFFERENCES 1. http://science. jrank. org/pages/714/Bacteria. html#ixzz28JlGDpue 2. Horikoshi, K. , and W. D. Grant. Extremophiles: Microbial Life in Extreme Environments. New York: Wiley-Liss, 1998. 3. Madigan, M. T. , and B. L. Marrs. â€Å"Extremophiles. † Scientific American 276, no. 4 (1997): 82–87. 4.Rothschild, L. J. , and R. L. Mancinelli. â€Å"Life in Extreme Environments. † Nature 409 (2001): 1092–1101. 5. Seckbach, J. , ed. Journey to Diverse Microbial Worlds: Adaptation to Exotic Environments. Dordrecht, Netherlands: Kluwer Academic Publishers, 2000. 6. http://www. biologyreference. com/Ep-Fl/Extreme-Communities. html#b#ixzz28Jn5EptD 7. http://www. nsf. gov/news/special_reports/sfs/index. jsp? id=life;sid=ext ASSIGNMENT 1 BACTERIAS THAT LIVE IN EXTREAM ENVIRONMENT NAME : SARANKUMAR PERUMALU MATRIX NO : 4112033021 LECTURER : MR MOOHAMAD ROPANING SULONG

Tuesday, July 30, 2019

Religious groups in Mediterranean in 900 a. d.

The representative sample is Spain, a Mediterranean country. Mediterranean World, by and large, had gone through many inter-religious wars and convulsions, until for a change a time of greatest glory arrived in the Middle Ages. During this period, the Muslims and Christians were able to live in peace and harmony. This resulted in the practice of cosmopolitan culture, and people of both the religions lived in mutual trust creating unique blend of Western Civilization, where in the contribution both the Christianity (Western) and Islam was more or less equal.Notwithstanding the dominance of the Muslims (Islam), religious harmony was the hallmark of the era. But the peaceful situation did not last for long. Arabic (related to Islam) was the primary language of cultural preservation and socio-spiritual progress during 800 a. d. in the Mediterranean history. In the initial stages, the language and religion (Islam) were imposed on the people. The impact of Islam was greatest during this ce ntury. It remained so between the 7th and 13th centuries. Every religion is linked or associated with a particular language like Arabic to Islam!The language prospers means the concerned religion thrives and vice versa. During the ascendance of Arabic language, Hebrew and Latin had also an important roles to play. They were clerical languages. At the same time, Arabic, apart from being the clerical language, was the language of poetry and prose as well . The califal library in Islamic Cordoba alone held 4000 books -the librarian’s catalog held information on some 600,000 volumes. The laymen of Spain do not have the knowledge of the immense contribution of the Muslim culture beyond the architectural remnants.But they celebrate with great pomp and fanfare the festival of the rout of the Muslim pirates. Notwithstanding the dominance of the Muslims (Islam), religious harmony was the hallmark of the era. To the eighth century Muslims, Iberian Peninsula was the entry point. The emo tional, physical and spiritual atmosphere was perfect. Cultural progress and constructive socio-spiritual activities were possible under such circumstances. Exquisite architectural masterpieces were built and scholarly writing was encouraged, and this had a profound influence on the life in Mediterranean area and many other parts of the world, for centuries to come.This is the greatest contribution of Muslims to this region in 900 a. d. â€Å"The Muslims who entered Iberia through the Gibraltar Strait in 711 defeated the Visigoths and moved up to the Pyrenees and maintained their stay for several centuries. Finally, with the fall of Granada in 1492, the Muslim presence was ended by Christian forces from the north. The Muslim-led civilization of medieval Iberia, a. k. a. Al-Andalus made many noteworthy contributions to humanity. † The influence of Islam that began in the early 7th Century continued till the 11thcentury.The greatness of this civilization and the dominance of Ar abic language have been highlighted by many scholars in their works. There were scholars who worked exclusively on copying Quran. That was not the era of the printing press. Book worship was the dominant quality of the Islamic polity. The Islamic Rulers encouraged building book-treasurers. So, Islam combined with Arabic language had profound influence in Spain and on the Mediterranean world during 900 a. d. It is pertinent to note here, what happened in 800 a. d. would contribute to the subsequent developments in 900 a. d. onwards. It was a period of positive and negative developments.The constitution of the new Empire sealed the break between the West and the East. It perhaps gave the West a new Roman Empire. Muslims incursions began to take place with more intensity across the Mediterranean, and they did not hesitate to impose their language and religion on the populace of the conquered territory. Trade across the Mediterranean came to a standstill and the ports, through which the merchandise arrived, were deserted with no commercial activity. The sea was no longer a safe route for commerce, because chaos prevailed all over the interior Mediterranean region initially.Due to the relentless pressure put by the invading Islamic outfits, Western Christian Civilization moved north. This resulted in the suspension of the contact with eastern, Byzantine Christianity. Over a period, they developed and formed into two distinct Christian groups. The common identity was lost. This situation worked to the advantage of Islam in the long run because their ‘religious enemies’ stood divided. Their hold and influence on the Mediterranean became even stronger. In this process, the replacement of Christianity of the southern and western Mediterranean areas by Islamic outfits had a catastrophic effect on Europe.In certain areas, a biased tax system was introduced to promote Islam. Additional taxes were imposed on Christians, but those who embraced Islam, were exemp ted. The religious persecution became order of the day. So the factors that contributed to the Muslim ascendancy were: patronage by the rulers for this religion, religious persecution for subjects practicing other religions, encouragement to literature in Arabic language, relentless pressure of the invading Islamic outfits on the people of Spain and the Mediterranean region.

Ways of Protecting the Environment

Our environment is a gift from God so we must take the full responsibility in protecting and preserving it. Good environment can make people feel happy and fit. To improve the environment means to improve our life. Therefore, human beings can protect the environment in three ways: conserving water, recycling, reducing, reusing and saving energy. First, we can protect the environment through saving water. Water is very important to us because we can’t live it. Water which is suitable to drink is becoming less and less. It is because we always waste a lot of water in our daily life. For example, many of the people always turn on the faucet when brushing teeth, washing or rinsing. Instead, we can fill a container with water for our use. Second, recycling, reducing and reusing are other ways to protect our environment. We can recycle the aluminum cans, glass bottles and newspapers. Besides that, we can transfer the organic matter such as potato peelings, leftover food and leaves to a compost heap in the garden and used as a natural fertilizer for the plants. Next, we should reduce the usage of plastic bags because they are non-biodegradable and hard to recycle. Let us reuse the things that are still valuable instead of throwing it away. Donate your old clothes or things to those who are in need. Not only will you protect the environment, but you will also contribute to a good cause. Last but definitely not the least is conserving energy. Let us use compact lights in our houses for they conserves electricity and remember to turn it off when you leave a room. When you do not use a house device like TV, radio, laptops, etc. turn it off as well. It's an easy habit to take up which will help you save a lot of money. Be concern and be a part in protecting the Mother Nature.

Monday, July 29, 2019

Professional & legal issues Essay Example | Topics and Well Written Essays - 2000 words

Professional & legal issues - Essay Example But in the given condition, it is only me who is available to sort out these problems. Since the problem is very critical, it may cause loss of life if not sorted early. Now since I am well qualified and is aware of the technique involving the creation of the problem, it is my moral as well legal responsibility to make an attempt to solve it. Currently there are two parties involved. First one is the hospital and the next one is me. Any death caused due to the above mentioned problem will be regarded as a matter of negligence with responsibility being shared by the hospital and the person responsible for maintenance. The hospital has failed in obtaining an emergency kit which can be used in case of any technical problem. No electronic device can be considered for life time and must not be expected to perform throughout without any problem related to hardware as well as software (Ackers, 2005). Despite knowing the utility and need of the IT officers, the hospital has also failed in maintaining the proper number of the same so that whole functioning of the equipments can be achieved without a glitch. So the hospital can charged for going for cost cutt ing through less hiring of the people required for maintaining necessary elements so that proper functioning of the emergency services like the ICU can be maintained. ... charged on the ground of lapses which may finally risk the patient's life and any casualty will be considered as a consequence of negligence on the side of hospital. And since currently only I am available, so it's going to be me who will finally be penalized by the hospital and there is a possibility of getting accused in the case. Being an IT professional, I will try my best to sort out the problem in the quickest possible time. But at the same time, I will suggest the authorities to hire more professionals so that any situation like the one mentioned here can be averted. Since most of the programs are meant for live saving equipments so there should be at a group of developers for developing, maintaining and handling of the system and at least one of them must be available at any given time (Bott, 2005). In the given case study there is just one person who was involved in the development process and he was not present when the problem raised its ugly head. The development of software is generally done in different phases with proper documentation each of the phases must be done and properly stored. The development of each of the phase should be followed with a very precise software testing techniques. The same process should again be repeated once the whole software has been developed. But still none of us c an say the software developed is error free. There is a possibility of it not performing according to expected outcomes because of hardware delay or any other complexity. So the complete set of hardware with the software must be tested live with output being properly monitored. The hospital must have at least a pair of each of the device with one being maintained for emergent conditions. Moving on to software development processes, the software must be developed

Sunday, July 28, 2019

Ancient History Assignment Example | Topics and Well Written Essays - 2000 words

Ancient History - Assignment Example The Eastern region was infertile, unproductive and sparsely populated. Its significance lay in the fact that it was a natural buffer zone that secured the western, fertile region from invasions and raids. During this period, Asia was inhabited by many different communities who were quite progressive and developed. The dyes and woolen textiles made in this region were quite famous and in tremendous demand. The Romans saw this region as a rich place for collection of taxes so that they could live lavishly and in style. The area also was quite rich in natural resources. Spices were grown in Asia which seasoned the food of the Romans, and was a crop that had worldwide commercial value.1 The larger cities of Asia were important centers for education and culture. In fact, Asia had everything that the Romans desired and wanted. Riches from Asia allowed them to indulge in a luxuriant life style, build their cities and have the largest armies in the world. Their large armies helped them to co ntrol and manage the territories they conquered.2 During the Roman peace period, trade and other cultural activities flourished in Asia Minor. Roman emperors acknowledged the importance of this region and travelled to different cities in Asia to help and encourage in the development and progress of this province. The Romans were quite adept in constructing roads, and a vast network of roads was built here to connect this part of Asia to the rest of the Roman Empire. During this time many enormous temples and other public construction such as libraries, sewerage systems, fountains etc. were designed by Roman architects and built by the local populating. Answer 2 The Third Mithridatic war fought during 73-63BC was the longest of the three Mithridatic conflicts. It started because the ruler of Bithynia was a puppet of the Romans, and Mitrhridates tried to overthrow him. Consequently, the ruler of Bithynia declared war on Pontus because of encouragement and support provided to him by th e Romans advisors. The two legions of Roman soldiers allied with the army of Nicomedes IV proceeded to invade Mitrhridates’ kingdom of Pontus in 89 BC. Nicomedes and his Roman allies were completed routed.3 Although Mitrhridates was welcomed in Anatolia, his hatred against the Romans persisted, and in 88 BC, he instigated a massacre campaign against the Romans and their Italian allies and eliminated them throughout the entire region. Tigranes the Great, who ruled neighboring Armenia became an ally of Mitrhridates and consolidated his alliance by marrying Mitrhridates’ daughter. Both kingdoms supported each other against Rome.4 The conflict in Asia Minor reflected Mithradte’s desire to defeat the Romans and include Asia in his rule. The second conflict was different because it reflected the ambitions of the Roman general Murena. Since both wars were inconclusive, it was apparent that there was going to be another war because Sulla who had discussed the terms and agreement of the first conflict had died. Sulla was a staunch proponent of peace. 5 Most of Sulla’s allies thought that the peace terms that he had negotiated were too soft, and when Sulla died the Roman Senate firmly refused to approve the agreement. In this war, the Romans defeated Mitrhridates VI of Pontus which ended the Pontic Kingdom and created the Kingdom of Armenia as an allied client of Rome. The importance of these wars was that the Romans gained power and influence in absolutely new territories. The precise dates of the

Saturday, July 27, 2019

Critical Analysis of BMJ article on systemic review of the literature Essay

Critical Analysis of BMJ article on systemic review of the literature - Essay Example The investigator followed the logical sequence and could comment on the work already done in the area. He was able to discuss on the gaps in the literature. Though the investigator described the methodology used and completed the study following literature review but the methodology used was not as suggested for this purpose while presenting rationale for this research. The investigator critiqued that the previous reviews were either narrative or quasi-experimental design and could not assess the effectiveness of the isolation measures therefore, he proposed a better review for valid inferences. The best methodology for this purpose is meta-analysis which has been described by Glass as "Meta-analysis refers to the analysis of analyses...the statistical analysis of a large collection of analysis results from individual studies for the purpose of integrating the findings." Although this research was carried out through a literature review process but in individual studies the investigator focused on the experiences of the patients; their stay in the hospital, course of disease and any other accompanying feature. The methodology and processes used in the analysis of the data were very well narrated and elaborated by the investigator, which reflects the grasp of the investigator on the subject area. He remained unbiased in the analysis of the literature review as he gave full attention to the errors and the issue of bias involved in these studies at individual level. 8. Credibility: The evidence of the ownership of the participants in the research could not be explored and validated. An explicit expression regarding this finding was not found. 9. Audability: The investigator has been successful in keeping the reader with him. He has been able to keep the interest of the reader alive. Although the review is difficult than meta-analysis to follow because the latter has got more scientific components involved especially at the level of analysis which uses some statistically methodology and this way makes the process simpler one. 10. Fittingness: Yes, findings of the study are generalizable. Out of the final 46 studies, 32 were with the findings, which were similar to the measures taken for MRSA reduction anywhere. Eighteen of these were weak as far as methodology or interpretation of the results was concerned while six were the strongest which were longer time series studies. This way methodology was the central point that contributed much in the strength of any study to be ranked high for more reliable results and generalizability. 11. Confirmability: Yes, the findings of the study convey the whole message as far as the experience of different players involved, the ownership, the understanding of the reader and application of the research findings. Even though the methodology was not strong for the subject (literature review vs. meta-analysis) but the investigator

Friday, July 26, 2019

Assault Rifles Should Be Banned In Washington State Essay

Assault Rifles Should Be Banned In Washington State - Essay Example 7 should be banned because these rifles are most commonly used in mass shooting incidences, the ban will result in safeguarding the lives of defense officials and the ban is completely constitutional. One of the main reasons due to which assault rifles should be banned is that these fire arms provide an advantage to the shooter and allows them to take more lives and spread more fears in a very limited amount of time. These rifles mostly contain more than 10 rounds and are easy and much faster to shoot and due to this several lives are taken away in a very small period of time. For example: in the Sandy Hook case the shooter, Adam Lanza used an assault rifle known as Bushmaster and within a matter of 10 minutes ended up taking a total of 27 lives at a school (Flegenheimer 1). Another reason due to which assault rifles should be banned is that it restricts the defenders of the nation in carrying out their duties in the best possible manner. It does not only become an obstacle in the way police men carry out their duties, it has even resulted in the deaths of several policemen while they try to safeguard the citizens of Washington. According to Mathews, there has been an increase in the number of police officials being killed since the removal of the ban on assault weapons, he notes that during the period of 2009 there was an increase of 24% in the number of police officials being killed due to gun fire as compared to 2008 (Matthews 1). Banning of assault rifles is completely constitutional and does not infringe upon the citizen’s right to purchase and carry arms as stated in the Second Amendment. During the period of 2008, Justice Scalia held in a verdict that the Second Amendment protects the right of the Americans to own and carry firearms but the amendment does not cover fire arms that are dangerous and unusual (Fuchs 1). This means that if Washington State bans assault rifles they would not be going against the constitution because these weapons are very

Thursday, July 25, 2019

Constitutional Law Essay Example | Topics and Well Written Essays - 500 words - 1

Constitutional Law - Essay Example For instance, if a person has been apprehended and charged with a criminal offense, they have to be presumed culpable and should be punished for their misconduct. This theory believes the criminal justice system was developed to control criminal conduct among individuals (Levesque, 2006). On the other hand, the due process model holds that individuals charged with various crimes are generally innocent until proven otherwise. In light of this, any individual charged with an offense should be allowed to enjoy certain unalienable rights. Packer (1968) described the due process model as drawing several similarities from an obstacle in the quest for granting criminal suspects punitive treatment and or sentences. The primary aim of the due process model is that, except for cases whereby suspected criminal offenders hold the society to ransom, they should be granted freedom until they are declared culpable. The model supports the notion that the primary aim of criminal justice is to safeguard the rights of the innocent and condemn the guilty. According to Levesque (2006), crime control model upholds as credible the outcomes of police investigations, and as such, police should have sweeping powers as far as fighting crime is concerned. By handling criminal suspects under police custody as if they are culpable of criminal offense, cases could be resolved as quickly as possible. Crime control, therefore, speeds up the administration of justice. In contrast, the due process model recognizes the importance of police activity in guaranteeing justice to members of the society. However, the powers of the law enforcement officers should be restricted to avoid cases of abuse or maltreatment to criminal suspects. Due process advocates for accountability of various stakeholders in the criminal justice process, which can be achieved by