or you have here individuals that are exceeding their authority on their own initiative.
Sweet Jesus! Don'tcha know it happens all the time in officious, policing-type organizations - SS, military (Abu Ghraib)? And don't think the upper echelon doesn't know about it and tacitly condone it by a slap on the wrist or looking the other way.
These guys in the local congs are not Supreme Court justices - but they are given the rule books and sent out there to police the ignorant R&F - sometimes they have to shoot from the hip. At some point they have to interpret the "laws" to fit a specific situation. Is it any wonder they dork up the whole thing on a regular basis?