The Independent Police Complaints Commission (IPCC) has been investigating an allegation that he attempted to influence the decision-making process of West Yorkshire Police Authority in respect to investigating his conduct.
He is also the subject of a second IPCC investigation into allegations he gave misleading information after the tragedy, when he was chief inspector with South Yorkshire Police.
More top news
Taken in the White Drawing Room at Windsor Castle, a new photograph marks the couple's 70th wedding anniversary.
The 69-year-old republic veteran told the annual Sinn Fein Ard Fheis it would be his last as leader.
A body has been found in the search for missing teenager Gaia Pope.