Thailand PM Paetongtarn Shinawatra, father Thaksin face legal peril
Constitutional Court hears petition seeking premier’s dismissal as separate court hears defamation case against her father.

Published On 1 Jul 20251 Jul 2025
Thailand’s ruling political dynasty is facing legal peril, as the country’s Constitutional Court considers a petition seeking the dismissal of Prime Minister Paetongtarn Shinawatra, while a separate court hears a royal defamation suit against her father, former premier Thaksin Shinawatra.
The petition filed by 36 senators and being heard on Tuesday accuses Paetongtarn of dishonesty and breaching ethical standards in violation of the constitution over a leaked telephone conversation with Cambodia’s influential former leader, Hun Sen. If the court accepts the case, it could decide to suspend the premier from duty with immediate effect.
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Thaksin also has his first hearing at Bangkok’s Criminal Court on Tuesday in a case centred on allegations that he insulted Thailand’s powerful monarchy, a serious offence punishable by up to 15 years in prison if found guilty. He denies the charges and has repeatedly pledged allegiance to the crown.
The kingdom’s politics have for years been dominated by a battle between the conservative, pro-military, pro-royalist elite and the Shinawatra family, whom the elite consider a threat to Thailand’s traditional social order.
On Tuesday, Thailand’s Constitutional Court is due to meet for the first time since a group of conservative senators lodged a case against Paetongtarn, accusing her of breaching ministerial ethics during a diplomatic spat with Cambodia.
If the court decides to hear the case, they could suspend the prime minister as they enter months-long deliberations, plunging Thailand into chaos as it grapples with a spluttering economy and the threat of tariffs from the United States.
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The controversy stems from a June 15 call intended to defuse escalating border tensions with Cambodia. During the call, Paetongtarn, 38, referred to Hun Sen as “uncle”, and criticised a Thai army commander, a red line in a country where the military has significant clout. She has apologised and said her remarks were a negotiating tactic.
The leaked conversation triggered outrage and has left Paetongtarn’s coalition with a razor-thin majority, with a key party abandoning the alliance and expected to soon seek a no-confidence vote in parliament, as thousands of demonstrators demand the premier resign.
“I will let the process take its course,” a downcast Paetongtarn told reporters on Monday. “If you are asking whether I am worried, I am.”
If Paetongtarn is suspended, power will pass to her deputy, Phumtham Wechayachai.
The 38-year-old Paetongtarn took office less than a year ago but has been badly weakened by the Cambodia controversy.
Thailand’s king on Tuesday approved Paetongtarn’s cabinet reshuffle after her allies quit. She has appointed herself as culture minister.
Meanwhile, Thaksin, the 75-year-old family patriarch and billionaire twice elected leader in the early 2000s, appeared at a Bangkok criminal court to face accusations of breaching strict lese-majeste laws used to shield Thailand’s king from criticism.
The allegations stem from a 2015 interview he gave to South Korean media and he faces up to 15 years in jail after the trial, which is set to last for weeks, with a verdict not expected for at least a month after that.
A court official confirmed to the AFP news agency that the trial had started but media would not be allowed in.
Thaksin has denied the charges against him and repeatedly pledged allegiance to the crown.
Thaksin dodged jail and spent six months in hospital detention on medical grounds before being released on parole in February last year. The Supreme Court will this month scrutinise that hospital stay and could potentially send him back to jail.