There is/are. Several for that matter. Unfortunately, who do you look to for "enforcement". The same people that are breaking them. Only when the "crime" is heinous, or embarrassing to the Department, will they actually take action. The only recourse is the FBI in many cases and they pick and choose the cases they want to investigate.
Bigger penalties will just result in fewer investigations and charges. Remember, the "fox is guarding the hen house".
Perhaps the only solution is a true civilian organization to investigate and charge. The Prosecutor's office is too close to the PD's as they deal with them every day. Nobody wants to p!$$ off the other side.
Actually, the State Patrol under the direction of the Governor might be the appropriate way to bring rogue officers to justice if their individual departments wouldn't take action.
After an officer was proven to be in the wrong, by independent review, you have the SP go to their home (or even their work) and put them in handcuffs for violation of civil rights, violation of oath of office, illegal action under color of law, or whatever is appropriate.
This happens maybe 2 or 3 times, you will see LEO attitudes change quick, and "training" on civil rights abuses would be done statewide overnight.
Of-course, this requires a willing and engaged administration to make sure the laws they are suppose to be overseeing are enforced at every level. But if that was the case now, every department would be "trained" on Open Carry and ID requirements by now. How hard would such a thing be in a work world where e-mail is ingrained in nearly everything done?
I mean really....one e-mail from the Governor to all the department heads state wide, "here is the law, teach it to your officers immediately, future 'lapses in judgment' will be punished accordingly."
Its not such a hard thing, it just requires a willingness to shake up the status-quo.
O, but if I were Governor...