Evidence

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Your case rests on your evidence. In the last decade, the possibilities for that evidence have increased immensely. So how do you deal with it all? Our resources dive into new technologies, staffing needs, and more. 

  • Science based interviewing

    PCE Pop-Up: Science-Based Interviewing for the Modern Prosecutor and Detective

    On September 9, 2025 PCE hosted a Pop-Up on Science-Based Interviewing. It focused on prosecutor’s use of evidence backed techniques grounded in psychology and cognitive science to gather accurate and reliable information from witnesses, victims, and suspects. These methods prioritize rapport-building and open-ended questioning to reduce bias, enhance recall, and strengthen the quality of evidence. If you are interested in the meeting materials, please contact PCE.

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  • Video_doorbells

    Investigative Uses of video doorbells:  A Guide for Prosecutors

    Author: PCE

    A new form of evidence can now be found at millions of households across the country. The video doorbell, a device providing a live stream from the front door directly to a person’s phone, has already been used as evidence in countless cases. See how it can be used, the challenges of using a device, and more in our guide for prosecutors: 

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PCE Videos

Additional PCE Resources

Colorado DA Uses American Rescue Act Funding to Expand Diversion and Restorative Justice (2023)

Video Edition Updated

Office of the District Attorney, Eighth Judicial District (Larimer & Jackson County, CO)

Population: 225,000 | Number of Full-Time Prosecutors:42 | Contact Information

The Office of the District Attorney for Colorado’s 8th Judicial District (CDA 8th)  has developed a pre-plea diversion program that has been dramatically expanded so that every incoming misdemeanor is screened by a dedicated team that proactively looks for good candidates who can participate in appropriate services or restorative justice processes.

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Manhattan District Attorney Trains Prosecutors in Science Based Interviewing (2022)

Video Edition Updated

New York County District Attorney’s Office (New York, NY)

Population: 1,630,000 | Number of Full-Time Prosecutors: 525

In Manhattan, the District Attorney’s Office of New York, brought in expert instructors  to train investigators and prosecutors in Science Based Interview (SBI) techniques derived from research conducted by members of U.S. Intelligence Agencies in support of the High Value Detainee Interrogation Group. The methods of interviewing are based on scientific research and designed to improve communication with suspects, victims and witnesses.

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El Dorado District Attorney Adopts Science Based Interviewing Practices (2022)

Video Edition Updated

El Dorado County District Attorney’s Office (El Dorado County, CA)

Population: 193,000 | Number of Full-Time Prosecutors:25 | Contact Information

The District Attorney’s Office in El Dorado County, California (DAED) is spearheading a national effort to train law enforcement and prosecutors in Science Based Interview (SBI) techniques derived from research conducted by members of U.S. Intelligence Agencies in support of the High Value Detainee Interrogation Group.  The methods of interviewing are based on scientific research and designed to improve communication with suspects, victims and witnesses.

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SAO Collaborates on Successful Low Level Diversion Program (2022)

Video Edition Updated

Office of the State’s Attorney for Howard County (Ellicott City, MD)

Population: 330,000 | Number of Full-Time Prosecutors: 45 | Contact Information

The Office of the State’s Attorney for Howard County Maryland (OSAHC) has partnered with local law enforcement, the Public Defender’s Office and County and State authorities to  develop a post arrest, pre-charging Law Enforcement Assisted Diversion program (LEAD) that addresses a variety of criminogenic needs in an effort to reduce convictions for low level offenders.

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Award Winning Domestic Violence Response Team is Improving Outcomes (2022)

Video Edition Updated

Boulder County District Attorney’s Office, 20th Judicial District (Boulder, CO)

Population: 330,000 | Number of Full-Time Prosecutors: 40 | Contact Information

The Boulder County District Attorney’s Office  (BCDA) has an Acute Response Team for Domestic Violence Incidents (DV ART) that employs a lethality assessment for every case within 24 hours.  Cases with high risks for lethality are flagged for personal contact with 48 hours of an event in order to build trust with victims, provide immediate resources and gather important historical information and evidence.

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