Grant has often claimed he believes his cellphone was hacked by News of the World. He told Sky News on Wednesday that he was happy to work with police but also backed calls for an independent inquiry.
In an article he wrote in The New Statesman this year, Grant revealed that he secretly taped a conversation with former New of the World journalist Paul McMullan, who admitted that the tabloid employed people to hack into mobile phones.
The scandal has accelerated this week, raising calls for executives at News Corp., which owns the paper, to resign.
