An Islami Chhatra Shibir activist has been jailed for five years and three months in a police assault case filed in 1998.
Chittagong Metropolitan Judge Shafiuddin handed down the punishment to Mohammad Nasir alias Shibir Nasir on Wednesday.
The court also fined the convict Tk10,500, in default, he will have to serve more six months and 15 days in prison.
Prosecution counsel Raihad Chowdhury said the court found Nasir guilty of assaulting and firing on the police.
The convict has been behind bars since March 1998.
At least 35 cases, including murder, were filed against Nasir in the late eighties.