based on the belief that building a rapport with prisoners is the best way to gain intelligence , according to Tuesday 's report . The FBI issued a statement saying it is `` gratified '' by the report 's findings , and Mueller promised that the bureau will continue to use `` rapport-building techniques in interviews '' of detainees . The inspector general 's investigators interviewed almost all of the more than 1,000 FBI employees who were deployed to one or more military zones between 2001 and 2004 , the report said . The vast majority of the agents adhered to FBI policies and separated themselves from other agencies ' interrogators who were using techniques that the FBI did n't approve of , the report said . The report listed `` a few incidents '' that `` clearly would not be permissible for FBI agents to use in the United States , '' including isolating a prisoner from human contact and participating in an interrogation in which detainees were `` given a ` drink of water ' in a forceful and inappropriate manner . '' It also listed incidents that were not `` clear violations of FBI policy '' but
WASHINGTON -LRB- CNN -RRB- -- The FBI did not participate in harsh interrogations of suspected terrorists detained in Guantanamo Bay , Afghanistan or Iraq , said a Justice Department investigation released Tuesday . An April 2007 photo shows a room at Guantanamo Bay that had been used for interrogations . The investigation also concluded that the bureau generally reported potentially illegal actions by the CIA and Defense Department . In `` only a few instances '' did FBI agents use techniques that were not approved by FBI policies , according to the report by Inspector General Glenn Fine . Fine criticized the FBI for being slow in developing and distributing its interrogation policy to its interrogators . Though the the FBI decided to avoid harsh techniques in August 2002 , the decision was not put in writing until 2004 , when the bureau also put in writing that the harsh techniques used by other agencies should be reported to FBI superiors . The 2002 decision by FBI Director Robert Mueller was that the bureau would adhere to restrictions used in interrogations of detainees within the United States . Those techniques prohibit coercion , abuse or threats . The policy is