CCTV showed 27 suspects, 24 of whom had been questioned, Leusak said.
School director Boonyapong Phowattanathanat gave evidence to Bang Khun Thien police about the school raid, which happened during the General Aptitude Test and Professional Aptitude Test (GAT-PAT).
Police spokesman Colonel Krissana Pattanacharoen said the officers would complete their investigation within a week.
This week, 20 adults, including the alleged leader Wanlop “Ake Fai” Nuchfang, 32, and four under-18s had surrendered to police and faced charges, including trespassing at a school, damaging state property, assault resulting in injury and violating the Alcohol Control Act by drinking at a temple. Wanlop was also charged with committing an indecent act on a teenage girl during the raid.
The adult suspects were denied bail due to their brazen disrespect for the law and a risk that they would tamper with evidence and threaten witnesses, the police said. Two 16-year-olds and two 17-year-olds suspects were kept at a juvenile detention centre until March 26 by a Central Juvenile and Family Court's order.
Meanwhile, Wat Sing temple abbot, Phra Khru Nawakarnwimon, said he had not talked to the newly ordained monk but had already assigned a mentor to help him as he was reportedly under stress after the incident.
The abbot denied knowledge of a rumour that the new monk wanted to move to a Roi Et temple.