"All animals are equal, but some are more equal than others." - Animal Farm, George Orwell
This kind of crap is becoming more common all the time, and then they wonder why the public's respect for LEOs has plummeted.
Respectfully, it is not LEO's that get this treatment. It's pretty much anyone of "higher status". Cops, judges, prosecutors, politicians, celebrities, etc. Short of something virtually impossible to cover up or unusually intensive scrutiny, they have, do and will receive a lighter touch. See the celebrity (Lindsey Lohen, I believe?) thread of the "lady" caught doing various illegal drugs and behavior, for which she gets a very mild slap on the wrist in response for not complying with an even more mild slap on the wrist.
Any person of a "normal" status gets the normal treatment. Even if they are innocent, they'll likely be bankrupted. Professional scumbags don't exactly get coddled (usually), but there's not enough of a push to keep them locked away forever. Our legal system isn't an effective deterrent if you have no significant assets nor societal status to protect.