Originally posted by: DainBramaged
The case you just cited proves my point nicely. Here's a quote:
Under the Fourth Amendment, authorities are prohibited from entering a home and making an arrest without a warrant unless so-called "exigent" circumstances are present. Those include "hot pursuit" of a fleeing felon, imminent destruction of evidence and the risk of danger to the police or other persons inside or outside of a house, among others
This is almost exactly what I said earlier. Also, I would be very surprised if this doesn't go to the Supreme Court and/or get overturned.
I understand why you're saying what you are, but if you read that carefully you'll see that the police can easily use it to rationalize entering a residence like the OP's case.
First of all it says, "those include..." It doesn't say those are limited to. It's just giving you a few of the examples of reasons the police may enter a private residence.
Second, there's the part about "...the risk of danger to police OR other persons inside or outside of a house..." In this case there were several people inside the house besides the owners and if the police had reason to believe that something could be going on that posed any sort of danger to people inside or outside of the house they could say they believed they had a right to enter. This would include someone providing alcohol to minors.
Now whether it held up in court or not is another matter depending on the judge, lawyers, and jury, but police can almost always find a reason to say they had right or obligation to enter a private residence when they've received a complaint and there's a party going on.
Most of the time though it's like what probably happened in this case and when they come to the door someone just lets them in. In a case like you mentioned where someone denies them entry, then they have to think long and hard about whether or not the probable cause they come up with will hold up in court before they go in.
As to the OP's question about the pictures, they will take pictures in a situation like that so that if something happens during the course of the party or if there is a complaint later they will have photos of the people present to go back to instead of just relying on who can remember who was there. It would be a precaution for just-in-case.