An old thread, and mostly picking nits, but hopefully taken in the right way:
I agree. They're usually punished far more severely, both by their employers and by the media. The type of error that in any other job would result in an informal reprimand often results in a suspensions, fines, forced transfers, or terminations. The media screams bloody murder over honest mistakes, especially when they were justifiable.
There's a lot of reasons for this that would make a discussion in of itself, some of them valid and some not, but it is grossly unfair to claim that police have it easier when it comes to punishment for error or malfeasance (especially malfeasance).
These are some pretty interesting assertions to be making without evidence. Number 1 is a sadly common belief, that IMO is much, much rarer than your statement purports. It is also a very common human behaviour that you will find in all environments - I would actually argue the police do it less than others, but I also have no evidence of this.
As for Point 2? Well, their belief is in many cases correct. There are many instances in Federal and Provincial law where peace officers are specifically exempt from certain laws, because they need to be to perform their duties. There are also other cases where police have to follow laws that civilians do not. I believe you are alluding to instances where police flaunt the law due to percieved immunity where it does not exist - I concede that this happens, but not so often as you seem to suggest.
Number 3 is so specific and nigh-inflammatory that it would be best verified with actual evidence. I positive that it is not true, but if you have some facts to prove it, I would reconsider (and be very suprised).
Number 4 I will not dispute. It is true, and 99% percent of the time totally necessary. As society in general becomes ever more litigous regarding privacy, this trend will continue. The media is not terribly helpful in this regard.
It doesn't sound like we're that far apart. I guess my point is that bad apples can be found in any barrel, and genuinely bad cops are so rare that I think you should assume that the *person*, in addition to the uniform, is worthy of respect until proven otherwise.