Developing an interview strategy
The first couple minutes of the interview should consist of non-threatening background questions such as the spelling of the suspect’s name, his address, marital status, job duties, etc. These questions allow the investigator to establish the suspect’s behavioral norms within the areas of eye contact, communication style and general nervous tension. In addition, these initial questions allow the investigator to establish a rapport with the suspect.
This introduction establishes the non-accusatory tone of the interview, and also the non-judgmental position of the investigator. The emphasis on being truthful, as opposed to a threatening statement (such as, "If you lie to me today I will prove that and you will be sorry!") will work to the investigator’s advantage later if it becomes necessary to interrogate the suspect.