Forensic Scientist / Forensic Technicians

Forensic Scientists and Forensic Science Technicians aid criminal investigations by collecting and analyzing evidence. Many technicians specialize in either crime scene investigation or laboratory analysis.


Forensic scientists and technicians work in laboratories and on crime scenes, and typically do the following

  • Analyze crime scenes to determine what evidence should be collected and how
  • Take photographs of the crime scene and evidence
  • Make sketches of the crime scene
  • Record observations and findings, such as the location and position of evidence
  • Collect evidence, including weapons, fingerprints, and bodily fluids
  • Catalog and preserve evidence for transfer to crime labs
  • Reconstruct crime scenes

In laboratories, forensic scientists and technicians typically do the following

  • Perform chemical, biological, and microscopic analyses on evidence taken from crime scenes
  • Explore possible links between suspects and criminal activity, using the results of DNA or other scientific analyses
  • Consult with experts in specialized fields, such as toxicology (the study of poisons and their effect on the body) and odontology (a branch of forensic medicine that concentrates on teeth)

Forensic scientists and technicians may be generalists who perform many or all of the duties listed above or they may specialize in certain techniques and sciences. Generalist forensic scientists and technicians, sometimes called criminalists or crime scene investigators, collect evidence at the scene of a crime and perform scientific and technical analysis in laboratories or offices.

Forensic scientists and technicians who work primarily in laboratories may specialize in the natural sciences or engineering. These workers, such as forensic biologists and forensic chemists, typically use chemicals and laboratory equipment such as microscopes when analyzing evidence. They also may use computers to examine DNA, substances, and other evidence collected at crime scenes. They often work to match evidence to people or other known elements, such as vehicles or weapons. Most forensic scientists and technicians who perform laboratory analysis specialize in a specific type of evidence, such as DNA or ballistics.

Some forensic scientists and technicians, called forensic computer examiners or digital forensics analysts, specialize in computer-based crimes. They collect and analyze data to uncover and prosecute electronic fraud, scams, and identity theft. The abundance of digital data helps them solve crimes in the physical world as well. Computer forensics technicians must adhere to the same strict standards of evidence gathering found in general forensic science because legal cases depend on the integrity of evidence.

All forensic scientists and technicians prepare written reports that detail their findings and investigative methods. They must be able to explain their reports to lawyers, detectives, and other law enforcement officials. In addition, forensic scientists and technicians may be called to testify in court about their findings and methods. [More.....]


Video Transcript
In popular media, the work of forensic science technicians seems fast-paced and exciting. In reality, the work is slow and painstaking—but still extremely important. Forensic science technicians often specialize in either crime scene investigation, or laboratory analysis. At a crime scene, they record observations, take photos, and collect evidence. In the lab, they perform tests on weapons and substances such as fiber, hair and tissue to determine a connection to the crime… and to a suspect. They also write reports to document their findings and the laboratory techniques used. Some forensic technicians specialize in particular areas such as fingerprinting, DNA, handwriting analysis, or ballistics. Digital forensics analysts specialize in computer-based crimes. They collect and analyze data to expose electronic fraud, scams, and identity theft. Most forensic science technicians work for police departments, crime labs, morgues, and coroners’ offices. They may work outside in all types of weather, and divide their time between labs and offices. While they gain expertise and deductive skills from on-the-job experience, forensic science technicians typically need to start with at least a bachelor’s degree in chemistry, biology, or forensic science. Forensic science technicians might be called upon to testify as expert witnesses in court. Their evidence and testimony can help send the guilty to prison…or clear the innocent.