U-shaped door bar (door guard) unlocking

“Did it get locked by itself?”

It was supposed to be a case where the police would be present, but when we arrived and waited, the police never came. After minimal verification of the person's identity, the lock was unlocked using the usual special tool. Almost as soon as the lock was unlocked, a woman appeared inside. This surprised her.

When I asked the client again, he told me that he had gotten into a fight with his housemate and had been locked out. Sometimes it's quite rare.

In the past, I encountered the task of unlocking a case where someone had been locked out during a divorce scandal, and had been locked out after the cylinder had been replaced. There was once a situation where a person did not respond to questions over the intercom, and 110 was called and the police rushed to the scene, resulting in a serious situation.