Criminal Investigation

The Criminal Investigations Division (CID) of the Williamson County Sheriff’s Office is responsible for the prompt, thorough, and constitutionally sound investigation of crimes occurring within Williamson County. CID serves as the investigative backbone of the agency, encompassing the units of General Investigations, Internet Crimes Against Children (ICAC), and Crime Analysis.

CID investigators are trained to manage a broad range of criminal cases, from routine offenses to highly complex and sensitive investigations. Personnel receive advanced instruction and hold specialized certifications that enable the division to conduct professional, ethical, and effective investigations. Core areas of expertise include:

• Homicide and death investigations
• Fraud, theft, and financial crimes
• Crisis negotiation and advanced interview/interrogation techniques
• Polygraph examinations
• Digital forensics and cybercrime investigations
• Internet Crimes Against Children (ICAC) operations
• Elder abuse and exploitation investigations
• Sex offender registration, monitoring, and compliance
• Human trafficking detection and enforcement
• Intelligence-led policing and crime analysis support

CID collaborates extensively with local, state, and federal law enforcement agencies to ensure a coordinated and victim-centered approach to criminal justice. The division maintains a strong commitment to investigative excellence, protection of civil liberties, and the relentless pursuit of justice for victims and their families.