Police and soldiers were deployed inside and outside the court’s compound and all vehicles entering the premise were subject to bomb checks.
For people entering the premise on official contacts, they were required to have all their handbags checked by security officials.
Security was boosted at all important state offices, commercial areas, bus terminals, train stations with both security in uniforms and in plainclothes.
Royal Thai Police commissioner Pol Gen Somyot Phumphanmuang said the tightened security was necessary as there is still attempt to disturb peace and order in the country by ill intention group of people.
Meanwhile warrants were issued last night for the arrest of three more suspects in connection with the Saturday bombing.
They are Ms Rajaphan Pokkrong, 20, Ms Nattapatch Onming, 56, and Virasak Towangchorn, 42.
Police investigators said the arrested suspect Mahahin Khunthong has confessed to the bomb attack saying he was forcibly hired by a person who he identified as “Dear” is living in Australia.
In a press conference Sunday night, seized documents showing the connection between the suspects and their employer were also shown , along with a scarf showing they are members of a so-called Democracy Protection Organisation, were displayed.
Only one suspect, Mahahin was brought to the conference, while the injured suspect Yuthana Yenpinyo is still at Mongkhut hospital for shot wounds.
Mahahin said Dear offered him 20,000 baht to do the job with threat to harm his family if he rejected the offer.
All messages were received on the Line chat, he said.
He also revealed that similar bomb attacks were also planned at several places in the capital.
They scheduled a meeting March 10 before launching simultaneous attacks, but he was arrested, he said.
(Photo : ThaiPBS file)