Calvin Rockholt serves as the Criminal Investigator for the Tenth Judicial District. His experience in law enforcement began in the 1970's as a patrol officer in the Athens Police Department and later as an investigator under former District Attorneys General Richard Fisher and Steven Bebb. Calvin also enjoyed a long tenure as the Mayor of Decatur, Tennessee. Calvin returned to the office in 2011. His main role is to coordinate and assist the Tennessee Bureau of Investigation and local law enforcement agencies in complex and highly sensitive investigations and to serve as a liaison in all homicide cases, and other matters as assigned by General Crump. Most recently, he has been named the lead investigator for the Tenth Judicial District Cold Case Unit.
Tony Isom also serves as a Criminal Investigator for the Tenth Judicial District. His law enforcement experience began in the 1970's as a patrol officer with the Chattanooga Police Department. Tony later served as a Master Patrolman, General Crimes Investigator and a Narcotics Detective. He also was a member of the SWAT Team. Tony left CPD in 1985 and joined the Drug Enforcement Agency as a Special Agent. He served with DEA until 2009. In 2009, Tony began work with the United States Marshal Service as a contract employee until he joined our office in 2017. Tony's extensive training in drug and narcotics investigations will be important as we try to find the opioid epidemic.