Command Staff

Captain David Valliant
Captain Valliant began his law enforcement career with the Rockwall Police Department in 1995. While a Patrol Officer he held the role of Officer In Charge (OIC), Field Training Officer (FTO), Accident Investigator (AI). He worked in patrol until 2002 when he was assigned to the Community Services Division as a School Resource Officer (SRO). In 2004, he promoted to the rank of Sergeant and has supervised in Patrol, Criminal Investigations Division and Narcotics. In 2012 he promoted to the rank of Lieutenant where he commanded the Patrol, Administrative Services and Criminal Investigations Divisions. In 2020 he was promoted to the rank of Captain. Captain Valliant earned a Bachelors of Science in Political Science from Texas A&M University, Commerce, he holds a Master Peace Officer Certification and is a graduate of the Police Executive Research Forum Senior Management Institute for Police, the Institute for Law Enforcement Administration(ILEA) School of Police Supervision and Command College. Captain Valliant can be reached at (972)772-6775 or by e-mail at dvalliant@rockwall.com.


Joe FloranceLieutenant Joseph Florance
Lieutenant Joseph Florance began his law enforcement career with the Rockwall Police Department in April 2003. He started with the Patrol Division and transferred to the Traffic Unit in 2007. As an officer he held secondary positions in the Field Training Program, SWAT Team and the Crisis Negotiation Team. He promoted to the rank of sergeant in November, 2012 and supervised the Patrol Division before transferring to the Traffic Unit. As a sergeant he held a secondary position as the Field Training Coordinator. Lieutenant Florance currently oversees the operations and activities of the Administrative Services Division and he serves as the Commander of the SWAT Team. Lieutenant Florance earned a Bachelor’s Degree in Criminal Justice from Tarleton State University and holds a Master Peace Officer’s license. He is also a graduate of the Institute for Law Enforcement Administration Command College (ILEA) and the Police Executive Research Forum Senior Management Institute for Police. Lieutenant Florance can be reached at (972) 772-6736 or by email at jflorance@rockwall.com.

Lieutenant Bryan Garrett
Lieutenant Garrett began his law enforcement career with the Rockwall Police Department in 1995. During his tenure with the department, he has served as a Patrol Officer, Field Training Officer, Accident Investigator and School Resource Officer. In 2001, he was promoted to the rank of Sergeant and supervised Patrol and the Field Training Program. In 2007, he was promoted to the rank of Lieutenant and has served as division commander in Patrol, Administrative Services and Criminal Investigation Division. He has also served as project manager for the TPCA recognition program. Lieutenant Garrett currently oversees the operations in Patrol and Community Services Division. Lieutenant Garrett earned a Bachelor’s of Science Degree in Criminal Justice from East Texas State University. Lieutenant Garrett holds a Master Peace Officer Certification and a graduate of the Institute for Law Enforcement Administration Command College (ILEA) and School of Police Supervision and a recipient of the FBI LEEDA (Law Enforcement Executive Development Association) Trilogy Award. Lieutenant Garrett can be reached at (972) 772-6462 or by email at bgarrett@rockwall.com.

Lieutenant Aaron McGrew
Lieutenant Aaron McGrew began his law enforcement career with the Rockwall Police Department in January of 2002 after graduating from Texas A&M University at Commerce with a degree in Business Administration. During three years in the patrol division, he became a Field Trainer and was bestowed the award of Officer of the Year in 2004. In 2005, he transferred to the Criminal Investigation Division as a Financial Crimes Detective. In 2007, he promoted to the rank of Sergeant and served in that capacity for almost twelve years serving in the Patrol Division, Traffic Division, and Criminal Investigation Division. In May of 2020, he was promoted to the rank of Lieutenant and is currently assigned to the Patrol Division. Lieutenant McGrew can be reached at 972-772-6703 or by email at amcgrew@rockwall.com.

 



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