Sergeant Dean Poos serves as the Police Department's Administrative Sergeant and has been a police officer for over 30 years. He has worked for the Rowlett Police Department for the last 20 years in various administrative and Patrol Division assignments. Sergeant Poos is a graduate of the Southwestern Legal Institute School of Police Supervision and the Bill Blackwood Law Enforcement Management Institute of Texas, Leadership and Command College. He has a B.S. Degree in Criminal Justice and holds a Master Peace Officer Certificated from TCLEOSE.