The mother of activist Jatupat Boonpatraksa, also known as "Pai Dao Din", says red tape has prevented her son from qualifying for early release from jail following a lese majeste conviction.
Prim Boonpatraksa went to the National Human Rights Commission (NHRC) on Thursday to demand justice after Jatupat failed to secure early release from prison.
The demand was contained in a letter Ms Prim presented to NHRC deputy secretary-general Boonkua Somnuek.
The activist was jailed in August 2017 for two and a half years after confessing to having shared a BBC Thai article deemed offensive to the monarchy on his Facebook page in 2016.
He was also charged with violating the computer crime law.
Jatupat is a student activist with the Dao Din group based in the Northeast, which led campaigns on the protection of land and natural resources.
After the 2014 coup, the group began staging protests against the regime.
On Thursday, Ms Prim said her son has 104 days left of his jail sentence and is regarded as an inmate of good conduct which qualifies him for early release.
Jatupat has also followed Corrections Department regulations throughout his jail term.
However, Ms Prim said she has been informed by prison officials that Jatupat still has a case pending with Samranrat police station in Bangkok related to the activist holding up a placard in public to denounce the regime.
Prison officials had indicated that with the case remaining unresolved, Jatupat would not be released from prison early.
She insisted that was not reason enough to keep him in jail and that her son's basic rights were being violated.
