the apartment doors, mostly near the floor, a very thin adhesive fiber is attached between the door leaf and the case. A few hours or a day After that, they’ll come back and look at the threads.
If the thread is torn, someone opened the door, so the apartment is not empty. If the thread is intact, the burglars conclude that the residents have traveled or have not been home for a long time and are targeting this apartment. According to the office, there have been break-ins in Linz, Traun,
