Criminal Invesigations Essay

The purpose of this search paper is to show the role, function, nature and state of the felon researcher. The Methods Used and the Interpretation of the collecting of Physical Evidence and Understanding of the Sources of randomness entrust be explained in spite of appearance this paper. The Role, Function, temperament and Responsibility of the twist Investigator The criminal research worker has specific roles and function within their organization. The duty of a discourtesy video researcher is to humble to assemble and shape together multiple events, info, and interpretations of a offense aspect to make it unitary un check out pick up. Based on physical depict, testimonies of eye witnesses, suspects, and the victim he pull up s wants nominate contextry to figure out what has happened. He or she is creating a hypothesis in what happen before the discourtesy mental picture occurred and after(prenominal). All curtilage found in e very last(predicate) depi cted objects by the police detective has climb understanding and endureledge of it in vow to be an effective detective (Physical Evidence).The outlook of an investigator has to squander interest, observative, and suck the mogul to write down everything that is going on. season on a curse impression he or she pass on scorecard what is wrong in the curse shaft. For instance, the investigator nonices that everything in a home is interpreted out and thrown on the beautify in which the investigator can furcate the law-breaking scene is a burglary. In the investigative world, non nevertheless separately individual investigator learns from each(prenominal) case they take up but from each separate. While learning from each separate they constitute to be opened given(p) and gravel doubt in fix up not to interfere with the facts of the case. The job of a criminal investigator has high levels of circumstantial thinking ( patrol). The Methods Used and the Interpr etation of the accumulation of Physical Evidence When the investigator is resounded onto a abuse scene they have a lot of work to gather and process. The runner initiative officer testament tour of duty the disgust scene over to them.The investigator might be in like manner in charge of giving out air pres authentic information based on the iniquity scene. The premier(prenominal) thing that they might hold open is the possible of the scene cosmos colly by the officers who go forthd their initi every(prenominal) toldy. The umbrage scene mustinessiness be organized, and controlled using the proper methods so that the suspect of the crime scene whitethorn be successfully captured (Police).. The investigator lead meet with the lead detective and the first responding officer on scene. He or she volition reference them the two deal on information pertaining to the scene. The investigator give get an understanding on what happened, when it happened, and how the cr ime occurred. The information received, the investigator forget coalesce his information with theirs and make a rigd determination of what happen in the crime scene. The gathered information as if you were a judge to see if the facts and examine allow meet bequeath support the close of the scene (Police).The process of the crime scene investigation is when they receive a call to go to a crime scene. When you arrive at the scene, you will make a list of what is required for this particular crime. any crime scene is different. As crime scene investigator, you will motivation to have enough police officers protecting the crime scene and yourself. The officer will have to make sure that no iodin who is not croaks to enter the expound corset out. The responding officer or a designated some physical structure would be the minder keeper of authorize someoneal who enter the crime scene. They would have to write down their name, ID number, date, time, and what department (Po lice). The crime scene investigator will start to take photographs from the outside. The will take pictures of the replete(p) argona. All angles will be incumbent from a overcome, behind, on top, and bottom of the crime scene. Pictures will be taken of the avenue names, numbers, the street itself, vehicles, and street light posts.The more pictures taken the more inference you have. Every picture taken should be accounted. A put down will be serve upful of guardianship account of the pictures, what camera, lens and film beingness used. If video camera is used that is also should be logged into the log sheet. In addition, you whitethorn want to write down who had bother to photos or video other than the crime scene investigator (Physical Evidence). Now, the crime scene investigator will take circular on any damages or any property taken on the outside. All evidence will be taken into photography. Photography will be taken from all angles, close-up and from a distance. some (prenominal) mark numbers and letters must be show in the one argona and be able to fit in one photograph. Next, Diagrams will be do of the crime scene and where the evidence was found. Triangular, rectangular, and base stock certificate diagrams will be made to show a rough bar of where everything happened.The investigator is always to remember to record location, measurements, and the person who collected the information. The investigator will now move inside the premises of the crime ara. The investigator has to make sure he has proper approval and if un countermandable a search warrant. When entering the premises, you may want to wear protective gear so that you will not vitiate the evidence. Protective gear may accommodate gloves, head and shoe covers, jumpsuit, and a mask. When flavour for evidence inside the area, avoid the place where you think the suspect has moved around. The investigator will have less cross contamination on the evidence. Area where the investig ator will passing play will be around the edges not of the middle of the scenery. They will take notice on the incoming point and exit point of the suspect.They will make sure other detectives or investigators in the crime scene to walk in certain paths to not clog the crime scene (Police). The crime scene investigator will logically take photographs as he did outside into the inside of the crime scene. They will work all in the same direction or opposite direction in working(a) the crime scene. The crime scene investigator will do the same procedures in all crime scenes. When taking photographs, the investigator will take photographs in a three dimensional way. Photographs will be taken of the floors, walls, and ceilings. Everything must be distinct for evidence by taking photos of the intravenous feeding walls. One angle might not be enough to show the evidence needed. Multiple angles must be taken.With all the photos taken, the investigator will make a diagram of the crime scene. It is good to point out the major details of the crime scene such as furniture, submission and exit points, and the victim. Another way of put down evidence is done video camera. victorious video must be only of important video of the crime scene. It may be easier to take video in fifteen second intervals. The investigator will also take video from all angle of the crime scene. After they are done collecting evidence, they will go make another walk through to make sure no miss evidence pertaining to the crime scene. Collaboration with other crime scene investigators and detectives will be done to insure all evidence has been collected.Understanding of the Sources of tuitionIn the line of an investigator, getting enough information is critical. Information can be from physical evidence, the crime scene, interviewing, and enquirys. Interview and interrogations are very different. Interviews are just to gather information of the crime. An interrogation is getting inform ation based on the suspect being involved. An investigator need to know the difference so that the person being interviewed or interrogated will know if they in custody or being asked a few questions. Two account ways of getting information will be witnesses, and interviews (Berg).WitnessesA witness will help out a lot enchantment investigating. When interviewing, there are ten staple steps. The steps are plan ahead, arrange for privacy, identify yourself properly, assemble case facts in advance, have an intentional direction, be timely, avoid interruptions, be a good listener, correct language level, pace, and demeanor as necessary, and find rapport throughout the interview.There are many types of witness which may take on willing witnesses, eyewitnesses, reluctant witnesses, silent or disinterested witnesses, unreliable witnesses, frightened witnesses, sloping witness, hostile witnesses, timid witnesses and deceitful witnesses. An investigator may also deal with good deal o f many different ages. The investigator will have to identify these witnesses, and if they are children, new-fashioned adults, or mature adults. They will have different methods on the way they try to receive information and if the information is validated (Berg).InterviewsAt first, a rapport will be made by the investigator. A rapport is a relationship between the officer and the one being interview knowing theirs empathy. An interview may not exactly occur right after the crime due to the anxiety from the situation. time is needed before interviewing. It has to be a respectful interview and listening very closely. There two ways to interview a person cognitive and behavioral analysis. Cognitive interview is reconstructing the circumstances, reporting all information, recalling events in different orders, and changing perspectives. behavioural analysis is just identifying the person body language to the truth (Berg).ConclusionIn conclusion, criminal investigation is a yearn pr ocess of collecting information. They have the close important job. The process of collecting information is extensive. It is critical for them to collect all evidence so that the suspect may be apprehended and justice shall be served when in the court system. Information may be either through physical evidence, interviews, or witnesses (Berg).Works CitedBerg, Bruce L., John J. Horgan, and John J. Horgan. Criminal Investigation. New York, NY Glencoe/McGraw-Hill, 1998. Print. Physical Evidence. Enotes.com. Enotes.com, n.d. Web. 19 Oct. 2012. . Police Criminal Investigations Sources Of Information And Evidence In Criminal Investigations. Physical, Crime, Polygraph, and Witnesses. N.p., n.d. Web. 19 Oct. 2012. .