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Crime Scene Investigator Responsibilities, Career, Education and Training Information

Crime scene investigator responsibilities include the supervision, evaluation, investigation, and analyzation of complex crime scene investigations. They use state-of-the-art tools and techniques to secure, cultivate, and collect physical evidence. Investigators create reports about observations and investigative efforts at crime scenes. These reports are then forwarded to law enforcement agencies. Crime scene investigators may be called to testify in court as experts.

Crime scene investigators inspect crime scenes where invasions, sexual assaults, murders, armed robberies, and burglaries have occurred. Investigators spend about 70 percent of their time packaging and processing physical evidence, photographing autopsies, and briefing law enforcement agencies. Investigators spend the remainder of their time preparing reports, teaching classes, and testifying in court.



The majority of crime scene investigators work 40 hour weeks but are usually required to work an after-hours shift every other week. Investigators must be available to respond to 24-hour emergencies.

Crime investigators should be in decent physical shape since they might have to kneel for long periods of time and carry heavy objects. Crime scene investigators are required to carry guns which they may have to use in a law enforcement situation.

Potential crime scene investigators must demonstrate police investigative abilities, be knowledgeable about search and seizure procedures, and understand an investigator's role during a crime scene investigation. Investigators must also understand their department's policies and procedures and local and state laws applicable to their job. Investigators must have a thorough knowledge of chemistry, anatomy, general science, and forensics. Investigators must be authorized to carry a firearm, have the authority to arrest suspects, and hold a valid driver's license.

Common Activities and Duties of Crime Scene Investigators

Crime Scene Investigators are responsible for the initial evaluation of the scene. Most of their work is comprised of taking photographs of the crime scene, forensic examination, fingerprinting and the collection of evidence such as fibers, hair, blood and paint samples. In completing their responsibilities as crime scene investigators, they undertake the following duties and activities both prior to and following the examination:

Would a career as a Crime Scene Investigator suit you?

Crime Scene Investigators typically work a standard 40 hour work week, although this may include night shifts, weekends and public holidays. Investigators are quite often part of a rotation that must be available or on call 24-hours a day, seven days a week. This means they are frequently called out in emergencies, so they must be available by pager or phone at all times.

Investigators can work both indoors, outdoors, or both. Due to the nature of their work, conditions can be very unpleasant and even dangerous — especially when they’re working outdoors in the field. Dexterity and physical strength are frequently essential for optimal job performance.

Investigators need to travel to and from crime scenes, so a driving license is usually an essential requirement of the job. They are frequently required to live within a set distance of the main office where they work.

Crime scene investigators must be methodical and very patient. They must pay meticulous attention to detail and never be hasty, even if under a lot of pressure. Sometimes crime scene investigators must be firm and capable of explaining to others (i.e. crime victims, law enforcement officers, etc.) that they can’t work more quickly. Investigators must also have exceptional listening and interviewing skills.