ABSTRACT
Two common methods for opening safes are (1) by forced entry, such as drilling a hole through the door above the fence to examine and align the tumbler positions, and (2) by manipulation. e rst method is not stealthy at all and leaves clear indication of entry (or attempted entry). e second method is more covert and leaves little or no trace. Safes are not the only artifacts that use combination locks. Luggage (such as brief cases or attaché cases), padlocks, furniture, and a variety of items use combination locks.
