Principles of Investigation

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Submitted By rsabatini
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1. The success of an interview or interrogation depends on a number of personal characteristics and commitments of the investigator. Planning for and controlling the events surrounding both interviews and interrogations are important but are generally viewed as more critical to the success of an interrogation. The success of the interviewer or interrogator and of the interview or interrogation is often determined by the time and dedication committed to preparing for the conversation. The interviewer must become familiar with the facts of the case under investigation and with the victim. The interrogator must learn as much as possible about the offense, the victim(s) and the suspect through the process of collecting, assessing, and analyzing data and theorizing about the motivations and thought processes of the suspect. These are some reasons that planning for an interview or interrogation are important and in many ways similar. In planning for an interview or interrogation, one must determine what questions will be asked to ensure they are good questions that will lead the interviewer or interrogator to the conclusions they are trying to reach. There are some instances where only moderate planning or preparation is necessary for an interview while extensive planning and preparation is needed to conduct an interrogation. The most common type of interview is an on-the-scene interview where extensive planning is not always a possibility. An examples of this is on-the-scene interviews such as routine traffic accidents. It is also important to determine where the interview or interrogation will take place as privacy is essential for an interrogation and of utmost importance in conducting interviews if possible. This is a similarity and a difference between interviews and interrogations as it is important to have privacy for both but not absolutely…...

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