The National Excessive Force Institute-Police Expert’s (NFI) are leading in police and law enforcement advisory and consulting firms. Over the past 15 years, the firm has earned a positive international and national reputation in police liability services, police department assessment, law enforcement strategies planning and program development, independent efficiency studies in addition to providing police/law enforcement use of force, supervision, and internal affairs training.
Chapman's successful and diversified experience is represented by over two decades of policing/law enforcement experience, ten years as a national and international use of force instructor, police practices and procedures academy instructor. Undercover Investigator within State and Federal law enforcement organizations.
This report examines unconstitutional interrogation patterns and practices inside Philadelphia's Homicide Unit that former detective Pitts and other homicide detectives alleged to have participated in. The report also includes a documented history of similar misconduct by Philadelphia police officers from 1970-2023.

Mr. McCauley is a professor Emeritus of Criminology and former chairperson of the Department of Criminology, Indiana University of Pennsylvania (IUP). Mr. McCauley has been an independent consulting criminologist for more than thirty years and continues to be engaged in criminal justice policy, and operational research.
This report identifies and examines unconstitutional practices within the Philadelphia homicide from the 1970s through the 2020’s. This report contains the expert’s professional opinion regarding the Philadelphia Police Department’s (PPD) operational and managerial conduct, and Detective Devlin and Worrell’s conduct during the investigation of S. Thomas.