Video: They helped to solve what became known as the crime of the century - the Great Train Robbery. Fifty years ago today the country was stunned by the theft of £2.5m from a mail train.
It wasn't long before the gang was rounded up,and last night 18 police officers involved in the search were commended at a reunion ceremony in Oxfordshire. Sarah Cooper has our report.
Police officers who investigated the Great Train Robbery have been commended for their part in solving the "crime of the century"
The police investigation into the Great Train Robbery will be commemorated tonight, on the eve of the 50th anniversary of the crime.