After reviewing the police report and evidences on the three charges of lese majeste against Thaksin, the prosecuting office decided not to pursue the cases, said Sermkiet Woradit, director general of Criminal Litigation Department.

The three cases involved three separate incidents that include Thaksin's meeting with Bangkok taxi drivers in the Huamark Indoor Stadium on December 25, 2005, his weekly radio address on February 4, 2006, and one in which he was greeted with a flag that had "Long live the King" written on it during his visit to Ayutthaya in 2006.

The decision will then forward to Police chief Pol Gen Seripisut Temiyavej to review.

If he did not agree with the decision, he could ask the Attorney General to make a final decision.

"However we regarded Thaksin's statements to taxi drivers were impolite and inappropriate, as well as a show of disrespectful to HM the King," Somkiet said.

Thaksin's statements could cause division and conflicts in Thai society, he said.

"Thaksin, as the prime minister, must not use those kinds of words in his speech," he added.

But legally speaking, the statements could not be deemed as defamation and hostility to HM the King, he said.

With regard to the Ayutthaya incident, there is no proofs that Thaksin hired people to use the flags.