Ronald C. Lister, a self-taught locksmith, started to work following the death of his father. He worked at everything from ditch-digging to painting & carpentry to office work & sales. During the Second World War, Mr. Lister worked in a shell filling plant as a locksmith & safe expert in charge of locks and keys. click here   Whenever you move into a new location, it is very important to check all the doors for proper security. Exterior doors should be equipped with a deadbolt lock having a minimum size of a 1-inch bolt going into the frame. A good quality jimmy proof lock is also an excellent choice. click here   If you are thinking of purchasing a safe for home or office use, please be wary of advertisements showing jewelry, money, wills and bonds being stored in a $79.00 security box. click here   Commercial and industrial establishments are gradually turning towards electronic and computerized locking systems, such as card access, which is also very popular in the hotel industry. click here