Carter has advised the
UK government on a wide range of issues. He helped resolve funding problems that surrounded Manchester's hosting of the
2002 Commonwealth Games. Carter was Chair of
Sport England from 2002 to 2006; a board member of the
London 2012 Olympic bid; a member of
HM Treasury’s Productivity Panel; and a non-executive member of the
Home Office and Prisons Boards. In 2021, Carter was the only Labour member of the
House of Lords to vote against an amendment to the
Leasehold Reform (Ground Rent) Act 2022 that would have reduced existing long lease
ground rents to a peppercorn, or zero financial value. In 2025,
The Telegraph reported that Carter was a freeholder, through The Freehold Corporation of which he was a director, of a 122-flat development in
Ilford, east
London with ground rent charges that increased every five years by the
retail price index, negatively affecting the mortgageability and saleability of leaseholders' homes. == Personal life ==