Dickson County Sheriff's Office
Service Before Self
140 County Jail Drive Charlotte, TN 37036
Administrative Office:(615) 789-4130
Jail:(615) 789-4109
Criminal Investigations Division
Captain Troy Martin
615-740-4884
Captain Martin began his career in 1991 as a Park Ranger at Montgomery Bell State Park. In 2003 he came to the Dickson County Sheriff's Office as a patrol deputy, where he has been the last 23 years. During his time with our office, Captain Martin has held the rank of field training officer, corporal, and sergeant in patrol. In 2012, Captain Martin came to the criminal investigations division as a detective. In 2024, he was promoted to the rank of Lieutenant, and in 2026, he rose to Captain of the division.
Along with his primary responsibilities, Captain Martin also spent 16 years on our SRT team and helped train deputies in defensive tactics and taser.
Lieutenant Brent Johnson
615-740-4868
The Criminal Investigation Division, commonly known as CID is committed to thoroughly investigating crimes in Dickson County with professionalism and compassion toward the victims. Detectives rotate on-call coverage during non-business hours to investigate major crimes 24 hours a day, 365 days a year. With 11 people in the division, we have over 230+ years of combined experience in CID.
Detective’s duties are to conduct in-depth, non-partial investigations both reactively and proactively. Detectives investigate a wide variety of crimes from vandalism to homicide. CID is divided into Personal and Property Crimes. Personal crimes include assault, sexual assault, robbery, rape and murder. This includes child sexual and physical abuse as well as elder abuse. Property crimes include burglary, theft, and fraud. Detectives routinely attend specialized training to improve their skills.
Each crime report is reviewed by a supervisor and based on several factors the report may be assigned to a detective for further investigations. Sensitive and special investigations are also conducted as directed by the Sheriff. CID works with the Department of Children’s Services, the District Attorney’s Office and other local, state and federal agencies. At the conclusion of an investigation, the case file is presented to the District Attorney’s Office to prepare for prosecution.