THE PRESENT INVENTION RELATES TO THE USE OF AN IMPLANTABLE DEVICE FOR DETECTING THE PRESENCE OF ONE OR MORE CHEMICAL COMPOUNDS WHEREIN THE COMPOUNDS MAY BE DRUGS, ALCOHOL AND OTHER CHEMICAL COMPOUNDS. THE IMPLANTABLE DEVICE COMPRISES OF MICRO STUN GUN (1), RECHARGEABLE BATTERY AND RECHARGEABLE POWER SUPPLY (2), BATTERY CHARGER AND POWER SUPPLY CHARGER (3), MEMORY AND STORAGE SYSTEM (4), DATA PROCESSOR (5), HEALTH SENSOR SYSTEM (6), CHEMICAL SENSOR SYSTEM (7) AND/OR ANTENNA AND COMMUNICATION SYSTEM (8). THE MOST ILLUSTRATIVE DRAWING IS FIGURE 1.