2022 – Cmdr. Liam Duggan


William (Liam) Duggan is the Investigative / Administrative Commander with the Prior Lake Police Department in Minnesota.

His career began in 1997 with the Burnsville (MN) Police Department before being hired by the St. Paul Police Department 2011 and now the metro area suburb of Prior Lake. Liam has served in leadership roles for investigations, patrol, vice/narcotics, SWAT, undercover operations, and training.

Cmdr. Duggan has a BS in Law Enforcement from Metropolitan State University-St. Paul and is a graduate of the Northwestern School of Staff and Command. He currently serves on the board of Advisors for the National Law Enforcement Firearms Instructors Association and as the Director of Training and Development for the Special Operations Training Association.

Cmdr. Duggan specializes in human performance factors analysis, training force options, firearms, arrest and control, and leadership development. Additionally, he is a certified Advanced Specialist in the Behavioral Analysis of Force Encounters through the Force Science Institute and consults as an expert witness in use of force incidents and policing best practices.

With Calibre Press, Cmdr. Duggan brings extensive knowledge and experience, as well as his own unique perspective, to the Street Survival Seminar, Tactical Leadership, and Human Performance courses.