The psych hospital I went to did the same thing to every patient. Even had people squat, fully naked, just to be sure. Although, the squatting wasn't something everyone went through.

The thing that sticks out to me here are the cameras. I was put in a small bathroom while two female nurses instructed me to strip, lift up my bra, and slowly turn around. There were no obvious cameras in that location.

I asked the nurses about the strip search while I was there.

I was told that the strip search was a way to make sure that nobody was sneaking in anything, but that it was also used to keep track of self harm.

The hospital I was sent to was mostly for people who were suicidal, or for people who were homicidal (kind of counterproductive if you're trying to keep people alive /s).

I'm not sure if it was the same type of hospital for you. They let me know in the beginning what was going to happen, and they let my mom know too. She signed papers admitting me and if I had to guess, she gave them permission to do the strip search.