We had a policy in my company which said, if you - the man/woman with an alcohol problem - seek help, the company will lean over backwards to help. Equally, if a colleague seeks help on your behalf the company will do the same. But if you come on duty over the limit the book will be thrown at you, unless you immediately admit the problem and are willing to accept help. There were a number of success stories - but you tend only to hear about those that are not successful.