Wirapol Sukphol, formerly known as Luang Pu Nen Kham Chattiko, has contacted the Department Special Investigation and offered to surrender to fight charges in Thailand on Thursday, DSI director-general Tarit Pengdith said on Monday.
Mr Tarit said Sukij Poonsrikasem, a lawyer for the 34-year-old, had contacted him with the surrender offer.
However, the disgraced former monk set three conditions for giving himself up on Aug 8. He asked to surrender directly to Mr Tarit, and no one else, to be ensured justice in defending the charges against him, and to be released on bail.
Mr Tarit, citing the lawyer, said Mr Wirapol had left the United States and was now in Laos. He might return home by plane to Suvarnabhumi airport or by land through a border checkpoint in Nong Khai province.
Wirapol Sukphol (file pic)
Mr Sukij said Mr Wirapol intended that one of his close pupils, who is a police or army official, would meet him on arrival and take him to the DSI investigators.
His client would fight his expulsion from the monkhood and would insist that he should not have been divested of his robes.
Mr Wirapol, who has been charged with having sex with a woman when she was underage and of fathering her son, would not have to undergo a DNA test, he said.
Mr Sukij said he had no information about Mr Wirapol's younger brother Suree Sukphol's claim that he is the person in a controversial photograph of a man who looks very much like Mr Wirapol sleeping with another person - possibly a female.
The lawyer said he will take legal action against Sukhum Wongprasit, a follower of the unfrocked monk, for making false statements about his client and damaging his reputation.
Mr Sukhum had not been assigned to speak on behalf of Mr Wirapol, he added.
The controversial religious figure left Paris for the United States early last month, and has not spoken to the media since a video clip of him and two other monks riding in luxury in a private jet went viral on the internet last month.
Mr Wirapol is wanted on an arrest warrant on charges of violating the Computer Crimes Act, fraud and sexually assaulting a minor as well as unlawfully separating her from her parents.
His passport, issued on July 6, 2011, is now invalid.