Techniques in the investigative interviewing and interrogation of victims, witnesses and suspects of crime vary around the world, according to a country's individual legal system, religion and culture. Whereas some countries have developed certain interview protocols for witnesses (such as the ABE Guidelines and the NICHD protocol when interviewing children) and the PEACE model of interviewing suspects, other countries continue to use physical coercion and other questionable tactics to elicit information.

Until now, there has been very little empirical information about the overall...

Techniques in the investigative interviewing and interrogation of victims, witnesses and suspects of crime vary around the world, according to a country's individual legal system, religion and culture. Whereas some countries have developed certain interview protocols for witnesses (such as the ABE Guidelines and the NICHD protocol when interviewing children) and the PEACE model of interviewing suspects, other countries continue to use physical coercion and other questionable tactics to elicit information.

Until now, there has been very little empirical information about the overall...