The Cambodian ladyboy identified only as Wee, 33, was apprehended on Pattaya Beach at Soi 12 by victim Samual Varadyan, 44, and his friends Nov. 14.
Wee allegedly had hugged the Russian, snatched his necklace and then dropped it. A passing pedestrian picked it up and helped apprehend the ladyboy.
Police said Wee confessed to the crime, saying he often worked for authorities to tip them off to other transvestite pickpockets. But he also confessed, police claimed, to working his own crimes with a Thai partner.
Cambodian ladyboy identified only as Wee has been charged with theft.