This then contains partial truth, cops do sometimes cover for others acting irresponsibly.
As far as departments behaving in that manner, it depends on location. Maybe in Hicksville USA, a dept
might cover for a POS but in big city depts, there is much more accountability. They will get suspended and fired.
I've seen it and it's a good thing. Public trust in LE is important and should be valued.
No one wants to be a rat, but if cops can expand their viewpoint to include ramifications involved, they need to act.