Generally speaking an interview is defined as a set of dialogue communicated and discussed between the investigator as well as his or her subject. Whereas, on the other hand an interview is something that can be conducted at a certain point of time especially being conducted during the time of investigation but an interrogation is something that should always be conducted when an investigator has caught hold of some reasonably suspected guilt platforms. An investigator makes preparation for an interview on the basis of certain things. He/ she or they; in case the interview is being conducted by partners have to ascertain upon the fact that the location or the place selected by them is the right place for the witness party or the victims so that they can develop a feeling within themselves that they are safe.