A professional who investigates and apprehends persons suspected of illegal sale or use of narcotics. Respnsibilities include:

• Compiles identifying information on suspects charged with selling narcotics.
• Maintains surveillance of suspect to detect modus operandi.
• Selects undercover officer best suited to contact suspect and purchase narcotics.
• Obtains police funds required to make purchase.
• Submits written report containing charges, available facts, and evidence to magistrate to authorize search warrant or wire tap.
• Observes and photographs narcotic purchase transaction to compile evidence and protect undercover investigator.
• Arrests narcotics offenders.
• Obtains statements for prosecution of offenders and appears in court as witness.