"in court" may have been a bit too strong, but police do generally have carte blanche to the entirety of someone's private life. For most people the police show up, confiscate anything that might possibly be evidence, damaging it or at least denying its use for several years. Never mind what happens to people, who often get arrested first and then sorted out later.

Due to the severe corruption of our institutions, the investigators in this case are the public. A time period of a decade is more than enough time to recall all the HUMINT assets that might be harmed by such disclosure.