In January 2008, he accepted the job as the Chief of Police for the City of Lancaster, Texas. By cultivating strong community partnerships, candid dialogue, and a strong commitment to make Lancaster one of the safest cities in the nation, from both external and internal stakeholders, community oriented policing became the foundation for Lancaster experiencing two consecutive double digit decreases in overall crime and, in 2010, reductions in both robberies and property crimes. Lancaster became one of the first police departments in the nation to partner with an independently owned crime lab (Integrated Forensic Laboratories) to provide forensic service.
In June 2011, Chief Humphrey proudly and humbly accepted the job as the Chief of Police of Norman, OK. Chief Humphrey strongly believes that Norman is a nationally recognized vibrant and premier city that has openly embraced community oriented policing and 21st century policing initiatives. In 2016, the police department and Norman Public Schools entered into a partnership by creating a School Resource Officer Program. The program is funded by a permanent public safety sales tax and school funding. The program focuses on safety, youth partnerships, development, mentoring, and youth and law enforcement proactive engagement. The program also focuses on reducing the school to prison pipeline theory. The department also implemented Racial Intelligence Training and Engagement (RITE). The program focuses on a 21st century policing approach to empower officers to improve communication and emotional intelligence (wellness on and off the street), while building departmental morale and community trust at the same time.
In 2017, the Norman Police Department became the first and only city in Oklahoma to be selected to participate in the Police Data Initiative. The program was established by the White House and the Police Foundation in an effort to use open data to encourage joint problem solving, innovation, enhanced understanding, and accountability between communities and the law enforcement agencies that serve them. Chief Humphrey also led the implementation of DDACTS (Data Driven Approaches to Crime and Traffic Safety), which, in city of nearly 200 square miles, he believes is helping Norman become one of the safest cities in America. He takes pride in knowing that, as chief, he is responsible for the safety of all of the citizens of his city.
Chief Humphrey is a graduate of the Bill Blackwood Law Enforcement Management Institute Command College (LEMIT). He is a member of the International Association of Chiefs of Police, International Association of Chiefs of Police Community Policing Board, Police Executive Research Forum, National Organization of Black Law Enforcement Executives, FBI Law Enforcement Executive Development Association, Board of Directors of Cleveland County YMCA, Crossroad Family and Youth Services, and Transition House (a community program in which those in crisis find pathways to mental wellness). In 2015, he was appointed by Governor Mary Fallin to serve as a Commissioner for the Oklahoma State Bureau of Investigation. He is also a 36-year member of Phi Beta Sigma Fraternity Inc. He currently serves as an adjunct professor at the University of Oklahoma. Chief Humphrey is married with three daughters and one grandson. He has over 30 years of law enforcement experience.