Mine accidents - a way to reach the trapped workers

This evening, I was talking about this blog to my father-in-law who is a retired doctor. He told me about his initial working years after education,  about 45 years ago. At that time, he served as a doctor in a hospital located in mines. He told me about an incident involving collapse of mine during drilling in which few miners were trapped. The trapped miners were safe and a way has to be found to reach and rescue them. The authorities tried all possible methods unsuccessfully. Then, on the advise of an employee, they contacted local thieves who used to steal the valuables and make money. One of them, honestly, told the authorities about their secret way to reach the location. Using this approach, all the trapped miners were rescued within a day.

I thought this information though funny but is valuable.