Department chief Witthaya Suriyawong said yesterday he signed an order on Monday to transfer the six prison chiefs.
They are Phitsanulok Central Prison commander Chartpol Arpasat, who has been moved to assist work at the department as inspector-general, Ayutthaya Central Prison commander Thawatchai Chaiwat, who will become chief of Phitsanulok Central Prison, and Ayutthtaya Provincial Prison chief Pakdi Tangtham, who will take up the commander post at Ayutthaya Central Prison.
Inspector-general Narong Yongnarongdetkul has been made commander of Ayutthaya Prison, Bangkok Remand Prison chief Sorasit Chongcharoen will become chief of Bang Kwang Central Prison and Bang Kwang Central Prison chief Ayut Sinthopphan will become chief of Bangkok Remand Prison.
The officials have been ordered to assume the new posts within seven days.
Mr Witthaya said the rotation of senior officials was designed to plug loopholes in some prisons which had failed to stop prohibited items, particularly mobile phones, from being smuggled inside their compounds.
He cited the many smuggled mobile phones found in a raid on Phitsanulok Central Prison as an example.
An earlier transfer of prison chiefs saw Pathikhom Wongsuwan, a younger brother of National Council for Peace and Order adviser Gen Prawit Wongsuwan, become chief of the Khlong Prem Central Prison, a source said.
Mr Pathikhom was chief of Ayutthaya Central Prison before replacing the commander of Khlong Prem Central Prison.