He insisted that he did not ignore AEC's order to file complaints against wrongdoers of alleged irregularities or corruption under the ousted Thaksin government as being criticised.

"I just received the order from AEC on Monday and I follow the instruction to file the complaints on that night. It is not true that I had been informed of the order many days before," he said.

AEC has warned state agencies that ignore the AEC's order to file complaints against wrongdoers could face corruption charges.

The AEC had told the Transport Ministry and Airports of Thailand to file complaints in the case of corruption in the procurement of CTX 9000 bomb scanners for Suvarnabhumi Airport.

Under the anti-corruption law, parties that have suffered damage need to file complaints about suspected wrongdoers, including people holding political positions. That allows the AEC to send cases, after investigation, to the Attorney-General for prosecution.

He said the AEC would send letters to the parties that have suffered damage due to alleged irregularities in the procurement of the power network for Suvarnabhumi Airport.

And Auditor-General Jaruvan Maintaka, an AEC member, would inform the affected agency again about Pojaman Shinawatra's land purchase.