High Quality Content by WIKIPEDIA articles! The Bad Nenndorf interrogation centre was a British Combined Services Detailed Interrogation Centre in the town of Bad Nenndorf, Germany, which operated from June 1945 to July 1947. Allegations of mistreatment of detainees by British troops resulted in a police investigation, a public controversy in both Britain and Germany and the camp`s eventual closure. Four of the camp`s officers were brought before courts-martial in 1948 and one of the four was convicted on charges of neglect.