The centre agreed on Wednesday to a request made by the Bangkok Metropolitan Administration (BMA) after outbreaks of violence on advance voting day on Sunday were capped by a protester leader being shot dead.
CMPO director Chalerm Yubamrung said 10,000 police were being deployed. He called on the general public to exercise their right to vote with police on hand to ensure safety and smooth election proceedings, starting by the supervision of the delivery of ballot boxes.
Protests and blockades by the People's Democratic Reform Committee (PDRC) and its alliance, the People's Democratic Force to Overthrow Thaksinism (Pefot) on Sunday forced election officials to scrap advance voting in 33 constituencies in Bangkok.
Bangkok and the southern region were hit by protests and blockades. Voting did not take place in 47 constituencies in the South.