I'm not sure about that, but they certainly aren't required to provide information needed to validate a warrant is legitimate. California recently had a gang r

I'm not sure about that, but they certainly aren't required to provide information needed to validate a warrant is legitimate. California recently had a gang round-up where warrants that were provided as the basis for searches for properties in question had almost all information needed to verify the validity of the warrant redacted (even the address for the property in question being presented at, at least according to local news). No one had any idea what was going on or whether the warrants were even legitimate, seemed like a play out of East Germany's playbook before the wall came down, just short of the gestapo.