The Investigation Services section is responsible for the follow-up investigations on all felony criminal cases and serious misdemeanors. The investigators assigned to this section are specially trained in the area of criminal investigations, such as rape, sexual assaults, drugs, fraud, interviews and interrogation.

In addition the Investigation Services section is responsible for direct oversight of the police department’s Crime Prevention Section and the daily operations of the Investigative Division.

This section maintains close contact with local and surrounding agencies including the Virginia State Police, Radford City Police Department, Christiansburg Police Department, Blacksburg Police Department, Virginia Tech Police Department, and the Montgomery County Sheriff's Department.