The government outsourced managing Aberfan and most other mines to a National Coal Board. The tribunal who investigated the disaster was very critical of said b

The government outsourced managing Aberfan and most other mines to a National Coal Board. The tribunal who investigated the disaster was very critical of said board, but it wasn't the done thing in those days to go after senior officials. Indeed, the disaster was one of the main inputs that led to the Health and Safety at Work Act 1974, the act under which senior officials nowadays can be (and sometimes are) prosecuted for negligence leading to deaths.