Crime Scene Unit

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The NYPD Crime Scene Unit is a part of the New York City Police Department's (NYPD) Detective Bureau's Forensic Investigations Division that is responsible for forensic investigations of all homicides, sexual assaults, and other crimes that an investigating supervisor deems necessary. Members of the Crime Scene Unit assist the precinct detectives in the processing of a crime scene as well as determining the proper routing of evidence between the NYC Office of the Chief Medical Examiner, the NYPD Police Lab and the NYPD Property Clerk.

The Crime Scene Unit is composed of NYPD detectives (or occasionally police officers that are awaiting their promotion to detective), not civilian technicians like crime scene units in other parts of the U.S.. Generally these detectives come from an Evidence Collection Team which is operated at the borough level.

The Crime Scene Unit covers all of the boroughs of New York City, but is staffed with less than 1% of the total number of detectives in the NYPD. These detectives are dedicated to doing what is necessary to ensure that the precinct detectives and the District Attorney have as much evidence to identify the perpetrator of the crime and convict them at trial.

The Crime Scene Unit has at its disposal many tools to process a crime scene including the materials needed to develop fingerprints, cast footwear and tire impressions, follow the trajectory of bullets fired through windows and the chemicals necessary to observe blood under special lighting conditions that would otherwise be invisible to the naked eye. The unit is also trained to process a crime scene in a hazardous environment, for example following a nuclear, biological or chemical attack.