A Thai man identified as Boonplod Kobchai, right, is escorted by Cambodian military police officers at Phnom Penh international airport, Phnom Penh, Cambodia on Monday July 5, 2010. The man and another Thai woman, both suspected of involvement in a bombing attack on a political party in Bangkok, was sent back to Thailand after handed over to the Thai officials. (AP)

Thai suspect Boonsom Varissareeya (C) is escorted by Cambodian military police into Phnom Penh International airport on July 5, 2010, to be returned to Thailand. Cambodia on July 3, arrested Boonsom and another compatriot Boonplod Kobchai thought to be linked to the anti-government 'Red Shirt' movement over a bomb attack in Bangkok last month. (Getty Images)