BANGKOK, May 2 (Xinhua) -- The Thai Supreme Administrative Court has denied former Thai Prime Minister Thaksin Shinawatra's petition to have his Thai passports restored, while Thaksin said on twitter that the Thai justice system failed to prove itself from political maneuvers.

The Supreme Administrative Court said on Tuesday that it agreed the Central Administrative Court's decision to dismiss Thaksin's petition. In 2016 the Central Administrative Court rejected a lawsuit filed by Thaksin after the Thai government revoked his two regular Thai passports.

Thaksin accused the Department of Consular Affairs of revoking the passports illegally on May 26, 2015.

Thaksin served as Thailand's prime minister from 2001 to 2006, when his government was overthrown in a coup.

His supporters, the Pheu Thai Party led by his sister Yingluck Shinawatra, won the general election in 2011 and then was again toppled in a coup in 2014.