The detainee was identified as Ahsan Habib, headmaster of Dapa Ideal High School.
Majibur Rahman, Inspector (Operations) of Fatullah Police Station, said the office assistant of the school filed a complaint with them that the headmaster sexually assaulted him while the headmaster lodged another complaint against five people, including Sirajul Islam, alleging that they demanded Tk 5 lakh from him after kidnaping him.
Habib mentioned in the complaint that Siraj picked him up, took him to Dhaka and beat him. He also made the headmaster sign a blank paper.
Later, a team of police conducted a drive at the school in the early hours, detained the headmaster and took him to the police station, he said.
Police also seized the CCTV footage of the headmaster’s office.
President of the school managing committee Mostafa Kamal claimed that Siraj staged the drama after failing to be the president of the committee.