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The Question & Answer (Q&A) Knowledge Managenet
The Internet has many places to ask questions about anything imaginable and find past answers on almost everything.
Terms in this set (11)
Different types of crime scenes include outdoors, indoor, and conveyance. Outdoor crime scenes are the most difficult to investigate. The exposure to elements such as rain, wind, or heat, as well as animal activity, contaminates the crime scene and leads to the destruction of evidence.
7 Steps of a Crime Scene Investigation
A crime scene is any physical scene, anywhere, that may provide potential evidence to an investigator. It may include a person’s body, any type of building, vehicles, places in the open air or objects found at those locations.
Applied to the criminal realm, a criminal investigation refers to the process of collecting information (or evidence) about a crime in order to: (1) determine if a crime has been committed; (2) identify the perpetrator; (3) apprehend the perpetrator; and (4) provide evidence to support a conviction in court.
“The initial responding officer (s), upon arrival, shall assess the scene and treat the incident as a crime scene. They shall promptly, yet cautiously, approach and enter the crime scene, remaining observant of any persons, vehicles, events, potential evidence, and environmental conditions.”
Crime scene investigators document the crime scene. They take photographs and physical measurements of the scene, identify and collect forensic evidence, and maintain the proper chain of custody of that evidence.
The Seven S’s of Crime-Scene Investigation
Common search patterns include the spiral, strip/line, grid, zone/quadrant, and pie/ wheel.
Answer Expert Verified. The answer is DNA. There are several ways to obtain DNA samples, like blood, saliva, semen or hair. They are very important to guarantee a certified verification of the people involved with the situation and guarantee the best investigation possible of the event.
The Trace Evidence Unit (TEU) identifies and compares specific types of trace materials that could be transferred during the commission of a violent crime. These trace materials include human hair, animal hair, textile fibers and fabric, rope, soil, glass, and building materials.
Physical Evidence
Fingerprints. Physical evidence that is found at a crime scene in small, but measurable amounts. Trace.
And even some evidence that is not admissible on its own may be admissible in conjunction with other types of evidence.
Fingerprint Evidence. Latent prints are left by the contact of the palmar surfaces of the hands and/or bare feet of a person are probably the most valuable piece of evidence at any crime scene. The term “latent” means hidden, not visible.
Physical evidence is often the most important evidence.
POLICE OFFICERS
Forensic chemists generally work in government labs, where they spend time analyzing evidence, assessing data, and giving testimony in court. Over the last 15 years, the field has opened up to women, who are moving up in the ranks.
The analysts who work in the crime lab and even those who gather evidence from the scene after a crime are generally not in these high-risk circumstances or in close contact with suspects. As a result, CSI careers are less dangerous than those of police officers and detectives.
Impression evidence is created when two objects come in contact with enough force to cause an “impression.” Typically impression evidence is either two-dimensional — such as a fingerprint — or three-dimensional — such as the marks on a bullet caused by the barrel of a firearm.
Forensic Biology would be beneficial for those who are interested in that discipline. Forensic Chemistry would be beneficial for those who are interested in that discipline. If you’re interested in DNA jobs, the FBI QAS requirements are: Chemistry jobs aren’t as specific in courses.
It takes four to six years of school to become a forensic scientist. Becoming a forensic scientist can take anywhere from four to six years depending on what level of education you pursue.
To become a Forensic Scientist, one must possess at least a 4-year bachelor’s degree in Forensic Sciences or related field with the relevant work experience of 1 to 2 years. If you intend to go for further qualifications, a professional certification takes about 1 year or more.
Top 10 Best Forensic Science Degrees
Rank | School | Location |
---|---|---|
1 | Mercyhurst University | Erie, PA |
2 | University of Central Florida | Orlando, FL |
3 | Texas A & M University-College Station | College Station, TX |
4 | Pennsylvania State University | University Park, PA |