The Christiansburg Police Department's Criminal Investigations Division (CID) is composed of a Lieutenant of Investigations, five Sergeant Detectives, and an Internet Crimes against Children (ICAC) unit that consists of a Sergeant Detective and one ICAC Investigator.

The primary responsibility of the CID is to work and follow up on criminal cases such as larcenies, frauds, sexual assaults, and many other types of felonies and serious misdemeanor crimes. Each Sergeant Detective is trained in hostage negotiations, interview and interrogation, homicide investigations, as well as many other speciality types of investigations.

One Sergeant Detective is certified as a Crime Scene Technician through the Virginia Division of Forensic Science and has recently beencertified as a Crime Scene Investigator through the International Association for Identification. The CID also has two Sergeant Detectives that are Certified Arson Investigators. Collectively, the five Sergeant Detectives have worked between 400-450 cases per year for the last four years.

The ICAC unit investigates crimes involving sexual exploitation of children through the use of internet and other electronic devices. The Christiansburg Police Department ICAC unit is part of the Southern Virginia ICAC Task Force; encompassing the area from Virginia Beach, crossing Central Virginia to Bedford, and spanning all the way down to Washington County. Christiansburg acts as the coordinating agency for the New River Valley portion of this SOVA ICAC Task Force.

The ICAC unit also provides computer forensic exams for the agency and the SOVA ICAC Task Force. Sergeant Townley has been trained on conducting computer forensic exams through the Secret Service and has also attended numerous other trainings throughout the country. The ICAC unit is also pleased to offer internet safety presentations for children and teenagers, as well as parents. Presentations can be tailored for most groups upon request and should be addressed to the Lieutenant of Investigations.