During a no knock, do the LE officers entering always announce who they are? And how liable would a person be if it were found out to be the wrong house and an officer were to be injured?
If you shoot a cop, even if it was justified, 99% of the time you are screwed. If the cop shoots you by mistake, you shouldn't have been there (even if it's your own home.) In other words, you can't win. HTH