NARCOTIC INVESTIGATION CONCEPT- Narcotic investigation is a necessary tool employed by drug enforcement agencies in building p a relevant and competent evidence, which are vital in the development of a drug case, several investigative techniques may be utilized for the successful attainment of the operation. This include but not limited to use of informants, interviewing, interrogation, surveillance operations and undercover operations. PLANNING AND INVESTIGATION- the most effective way of investigative technique or combination of two or more or all techniques under a given situation and setting that shall be determined by considering the magnitude of drug law violations. THE CONDUCT OF INVESTIGATION- shall follow the basic steps in criminal investigation and detection. The application of the following: 1. Initial investigation 2. Tactical investigation 3. Post operation 4. Custodial investigations 5. After investigation and inquest 6. Prosecution and filing of the case 7. Trial of the case