Sorry, I don't buy the police story. Possession and consumption of alcohol is not illegal for any of the housemates and whilst the Old Bill may have given advice, it's up to BB to interpret that. It seems to me that the producers have given everything a rest for a week to allow everyone to recover, but that things will start to crank up again (slowly) as the series moves on.
I'm no psychologist but if you look at the way there has been the development of (albeit grudging) respect for each other, and the fact that they did all talk through their issues I think that it is unlikely that a huge stand off would happen again.
Just my tuppence worth!