Mr Soonthorn is chairman of the Prachin Buri Provincial Administration Organisation. His daughter has already been charged in the same case.
Prayut Phetkhun, deputy spokesman of the Office of Attorney-General (OAG), said Soonthorn reported to Muang Rayong police.
He was being handed over to the Region 2 office of the Anti-Corruption Commission, headed by director-general Phichit Juthaprachakul, reports the Bangkok Post.
When Soonthorn arrived, public prosecutors would immediately take him to court, the spokesman said.
Soonthorn, his daughter Kanokwan and eight other people have been accused by the National Anti-Corruption Commission (NACC) of illegally occupying about 150 rai of land in Khao Yai National Park in Prachin Buri.
Ms Kanokwan reported to the OAG on June 10 to hear the charges. The deputy education minister was taken to the Criminal Court for Corruption and Misconduct Cases Region 2 in Rayong’s Muang district and indicted.
She was released on bail with B300,000 cash and land title deeds as surety.
Her father failed to show up, prompting a police search for him at five locations in Prachin Buri with a warrant for his arrest. They did not find him.
The OAG decided to indict the deputy education minister and the nine others on June 7 on the recommendation of the NACC.
The commission said it had sufficient evidence to take legal action against them over the issuing and use of three false title deeds to three blocks of land inside the park in Prachin Buri, her home province. Two of them cover a total area of 54 rai inside Khao Yai.