Do you ever get the client or family member who want to sue NCIS, OSI, CID, CGIS, for what they did in an interrogation. Barring application of Feres (ha, some English major has to find something wrong with that).
Check out Smith v. Campbell, et. al., 295 Fed. Appx. 314, 2008 U.S. App. LEXIS 19085 (11th Cir. 2008), a case in which the police got Ms. Smith to confess to murder of a person who committed suicide. The police interrogation methods did not shock the conscience and were justified. Ms. Smith's 1983 case dismissed.