So stressful! Shingles too...wow. I person can be committed short term if they are deemed to be a danger to themselves or others...I'm not sure drunken or bizarre behaviour would be considered such. What powers do the police have in these situations? Here a person can be taken in without the police witnessing the act but on the word of others...not sure about your neck of the woods. When brought to the hospital a psychiatrist will make the decision whether to Form the person or not. You might want to check with the police re what is the law in her area.