51.   All guestrooms and floors are accesible by electronic card keys and computerised door locks, a feature to ensure maximum privacy and added security.

52.   An international commission has named weak door locks and the weak steel construction of the bow visor as among the reasons for the tragedy.

53.   An international commission said last year that the shipbuilders made the cargo door locks too weak to withstand stormy waves in the Baltic.

54.   An international commission last year blamed the shipbuilders, saying the cargo door locks had not been made strong enough to withstand stormy seas.

55.   At the same time, many other sport utility vehicles have luxury equipment such as leather seats, automatic power door locks and power windows.

56.   Authorities said he escaped from jail using a comb to spring a door lock and wriggling through a roof drain.

57.   It said the door locks should have been five times stronger.

58.   Lack of automatic door locks is another issue pinpointed by the council, as children can open machines while they are in operation.

59.   Last December an inquiry commission ruled that the accident was partly due to faulty bow door locks and human error.

60.   Staff arriving at the transmitter station found barbed wire around the facility cut, the door lock broken and the equipment missing.