Developing Smarter, Safer, More Successful Law Enforcement Officers

Sgt. Liam Duggan

William Duggan is a Patrol Sergeant with the St. Paul Police Department. His career began in 1997 with the Burnsville (Minn.) Police Department before being hired by St. Paul in 2011. William has served in investigations, patrol, vice/narcotics, SWAT, undercover operations, and training.

Sgt. Duggan has a BS in Law Enforcement from Metropolitan State University-St. Paul. 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.

Sgt. Duggan specializes in human performance factors analysis, training force options, firearms/combatives 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.

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