Thaksin Shinawatra insists his takeover of Manchester City is clean.

Thaksin has nothing to fear from a Thai investigation of his takeover of Manchester City, his lawyer said on Wednesday.

"We don't need to pull our pants down to prove that we are innocent," Noppadon Pattama told reporters after the Asset Examination Committee (AEC) said it had begun a probe into whether the club was bought with legitimate financing.

The deal was legitimate and Thaksin was not concerned, he said.

"He is not not paying attention to this bid to discredit him, but working on how to make the City the number one club," Noppadon said.