18 U.S. Code § 242, “Whoever, under color of any law, statute, ordinance, regulation, or custom, willfully subjects any person in any State, Territory, Commonwealth, Possession, or District to the deprivation of any rights, privileges, or immunities secured or protected by the Constitution or laws of the United States…”.

The judge erred in granting the warrant, the police violated the above statute. Them being unaware would be an affirmative defense, that does require admission of the above crime.