The Support Division provides specialized services that enhance the effectiveness of patrol operations and overall department capabilities. This division focuses on investigations, specialized enforcement, and community-based initiatives.

The Detective Bureau is responsible for investigating follow-up cases that require additional time, resources, and specialized expertise beyond the initial patrol response. Detectives work diligently to identify suspects, gather evidence, interview witnesses, and prepare cases for prosecution. The Detective Bureau handles investigations involving, but not limited to:

• Crimes against persons
• Property crimes
• Fraud and financial crimes
• Narcotics and related offenses
• Juvenile investigations

Detectives collaborate closely with patrol officers, prosecutors, and other local, state, and federal law enforcement agencies to ensure thorough and professional investigations.

The K-9 Unit is a specialized resource that supports patrol and investigative operations. Our trained police service dogs and handlers assist in a variety of law enforcement functions, including:

• Tracking and apprehension of suspects
• Article and evidence searches
• Narcotics detection
• Building and area searches
• Officer safety support during high-risk incidents

The K-9 Unit enhances officer safety and effectiveness while serving as a valuable asset in crime prevention and enforcement efforts.

Detectives and a civilian evidence technician/custodian are tasked with photographing and processing crime scenes. They work closely with patrol officers in locating and seizing forensic evidence.

The St. John Police Department contracts with St. Louis County Police Communications who provides dispatching services 24 hours a day seven days a week. They handle calls for police service and dispatch St. John officers to calls.