I have a question for any legal minded Kiwis. Let's say the above situation is as how Fat Rick described it. Let's say a cop's at my front door and he's threatening to kick it down and arrest me if I don't open it for him. Is that by itself a 4A violation or would he actually have to kick in my door and enter my residence?
Assuming no warrant, it depends on what is known as "
probable cause." Simply put, if an officer has a reason to believe something is wrong, they're authorized to do what they must stop it. This is why you
never open your front door for the police, because they can say, "Hey, I smell something weird," and get their probable cause that way. This is how a lot of people who would've otherwise gotten away with their crimes are caught: by acting funny or committing misdemeanors.
In Fat Rick's case, I don't think it's a 4th Amendment case. When a SWAT team is kicking your door in, they believe a criminal activity is going on (probable cause) and are moving to stop it. This is normally a good thing, since in an emergency (like a hostage situation) there won't be time to get a judge to give you a warrant. This is what SWATers abuse to try and harm or kill their victims.
So, if Torswats calls the cops and says, "Hey, I'm Fat Rick, I'm about to feed some nigger babies to a grinder, what're you gonna do about it?" that gives the cops probable cause to break down the pig pen's front door.