The Independent Police Complaints Commission (IPCC) has released a statement regarding Sir Norman Bettison's resignation.
The IPCC is currently pursuing two separate investigations involving Mr Bettison. The first is looking at "potential criminal offences" and the second at "misconduct matters".
We were not informed of Sir Norman's resignation in advance of the stories appearing in the press and the decision came as a surprise to us ...
We note Sir Norman's public statement that he intends to co-operate with our investigations.
It should be noted we can and, in this case, will investigate both criminal offences and misconduct matters after an officer has retired or resigned as it is in the public interest to do so ...
Retirement or resignation does not prevent criminal prosecution should the investigation identify criminal offences, including misconduct in a public office.
Sir Norman Bettison resigns as chief constable of West Yorkshire Police after claims that he was involved in a Hillsborough 'cover-up.'
A Hillsborough survivor claims that Sir Norman Bettison told him about a cover-up shortly after the 1989 stadium tragedy.