A tuition teacher allegedly kissed and touched his 16-year-old student at a tuition centre in Johor Baru, Oriental Daily reported.
The incident was alleged to have happened between 3pm and 6pm on July 11.
Seri Alam OCPD Supt Jokhiri Abd Aziz said the victim lodged a police report four days later.
Supt Jokhiri said initial investigation showed that another student in the tuition centre was also a victim.
He said the police had detained the 26-year-old suspect for further investigation.