My common sense says that if they restrained her in a chair there is no need for her to be nude.
Absolutely wrong. I have on my desk four paper towels. I have twisted them as far as they can be twisted. I have pulled on them as hard as I can pull on them. I am no weakling. They will not break. It is possible. Now for a gown that has enough paper to cover the human body,I assure you there is enough paper to twist into a form that could be made into a makeshift noose. You don't have to hang yourself from the ceiling. You might tie it to the water faucet and strangle yourself sitting on the floor.
I believe the police over a drug addict who has been arrested numerous times.