A 29-year-old man has been arrested on suspicion of fraud after allegations that Tottenham Hotspur FC spied on Olympics officials during its stadium bid.
News of the arrest came as Olympic Park Legacy Company (OPLC) chairwoman Baroness Ford claimed the north London football club had all 14 members of her board monitored by private investigators.
The suspect was being questioned as officers conducted a string of searches in Sussex, Sutton, south west London, and Westminster.
Spurs denied putting officials under surveillance.
Detectives, who have been investigating the claims since August 2011 “following allegations by West Ham and the Olympic Park Legacy Company in respect of the unlawful obtaining of information”, said the suspect was arrested at an address in Sussex.