Bismark
no cause or blame being found
A post-BoI investigation was conducted into the contributory factors and blame was
laid on an individual.
The person cleared himself and no further action was taken. A few MPs later asked questions in the House. The answers MoD provided confirmed that person could not have been at fault. Peculiar that, having initiated an investigation, they didn't pursue it further. You begin to suspect they didn't like where it was leading.