The tape recorded statements and written statements are primary techniques of obtaining testimony and interviews. Tape Recorded statements are verbal and electronically recorded data used to present confessions and declarations on what was discussed at a meeting and may wholly or partly advise the person who made it. Written statements are non-verbal that has been signed by the witness. It is usually intuitions and opinions that can provide leads to the private investigators. Private investigators may use the question answer techniques or the narrative techniques in writing statements. The statements are not disclosed to the witness they have already adopted or approved the information themselves (Saferstein, 2015). The tape-recorded and written