Vexting
No. I have not. Enlighten me.
So the way that it works is this:
Police are in charge of themselves. They don't have to answer to any authority except other police. That is why Internal Affairs exist. They are the "Cops Cops" and it is supposed to be their job to weed out any 'bad cops.'
The biggest problem though is this: If you are in IA you are hated by other cops because they think that IA is only there to get Cops fired. If you talk to IA you are considered a 'rat' and you will be persecuted for your compliance. That means you could get the worst duties, it means that the other Police will threaten you, harass you, physically assault you. Basically they will do everything and anything they want to get you to leave the force, or if you really hurt them they will kill you/force you to commit suicide.
During your time in the Academy it is drilled into you that there is an unspoken law of the Police and that is called the 'Code of Silence.' It teaches all cops that they are NEVER allowed to stop or speak up about another officers wrongdoings. They do this because they think that even if they might so something outside of the law they are doing it to stop criminals, and criminals aren't real people anyway.
This is not a secret and it is not hard to figure out that the system is extremely flawed. Firstly any system that governs itself is going to be full of corruption. Secondly there is no oversight for their laws and rules. They can make up any system that they want and enforce it however they please. This is why most of the time even is someone complains there is nothing to be done. You need a Cop to stop a Cop and that just won't happen.
It also doesn't help that police forces are unions and pretty much have immunity from wrongdoing through 'Color of Law.' ie. Cops can break traffic laws, Cops can break into private homes, cops can assault citizens, as long as they are acting in an 'official' capacity.