I will second Natez's truth.
Also, to keep on the subject of this thread I will respond as a 17 year veteran LEO, held every rank from Patrolman to Chief.
An LEO acting within the scope of his official duties is presumed to be acting lawfully when serving court process including writs and warrants, or when conducting a warrantless search or arrest based on probable cause or an investigation based on reasonable suspicion. All of these actions are in fact reviewed by the court for their validity ( if you think the courts give LEOs a free pass on this stuff you don't get to court much). If you got a beef take it up with the judge. Simply put, most people are not qualified to determine if they think their rights were violated, because they don't know in modern legal terms where their rights begin and end. They simply know what they believe based on their specific point of view. That is why the court reviews pretty much all police actions that result in arrest or seizure of property. There is no right to resist the police in the performance of their official duties unless you are prepared to declare a state of war between you and the government. In that case you will still be taken into custody and probably jailed, or put into an assylum.
Do cops make mistakes and hit the wrong house, Yep, but rarely. It is uncommon enough to be national news. The following lawsuit, usually done on contingency is usually worth about $500k-$1m to the victim of the mistake.
Simply put, if I believe I am performing my lawful duties, and someone opens fire on me. I will return fire in kind and with all necessary tools at my disposal. I will summon that help necessary to end the threat to my life. We will not just go away because someone thinks they want to resist lawful process.
As to those who bring up Ruby ridge or Waco, we could just as easily say these tragic events could have been avoided had the primary actors, IE, Weaver or the Dividians, come out peacefully when the cops showed up. Fact is that they would not have been harmed and had their day in court.
The fact is that we live in a republic. That means democraticly elected representative government. There are checks and balances built in to the system. The legislature writes the laws, the Judiciary interprets the laws and determines constitutionality, and the Executive branch enforces the laws. Thats the way it is. If you don't like the law, vote for representatives that will change it in your direction, but you have no right at all to open fire on people who are acting within the scope of their official duties.