Bank lockers are often considered as a safe place to store valuable items. However, there are certain things that you cannot keep in a bank locker. These include cash, jewellery, important documents, and hazardous materials. Banks have restrictions in place to ensure the safety of the locker and other customers’ items. Moreover, it is crucial to note that the bank’s liability for the contents of a locker is limited, and one should consider getting appropriate insurance coverage for valuable items. Read on to know more about prohibited items and the potential risks involved.