The Merrillville Detective Bureau consists of eight detectives.  The detectives are assigned and investigate cases such as theft, fraud, burglary, armed robbery, criminal mischief, drug related cases and homicides. The entire detective bureau works together as a complete team to solve many cases. The Merrillville Detective Bureau is also committed to reducing drug related crimes and has assigned a detective to Lake County HITDA. Information provided by the community is an essential tool to the detectives when investigating cases. In past cases, community members have provided information that has resulted in the arrests and convictions of major felony crimes. The Detective Bureau also uses the Computer Voice Stress Analyzer (CVSA) as a tool for Truth Verification.