Police have shown "extreme inefficiency and negligence" in investigating a case filed over rape of a student of Viqarunnisa Noon School, a Dhaka court observed today while delivering verdict in the case.

Judge Saleh Uddin Ahmad of Special Tribunal-4 of Women and Children Repression Prevention sentenced Porimol Joydhor, a sacked teacher of the school, to life term imprisonment for raping a class-X student in 2011. The court also fined him Tk 50,000, in default to serve six months more in jail.

In his observation while delivering the verdict, the judge said the investigation officers of the case are inspectors SS Shahadat Hossain and Mahbub-e-Khuda.

"Especially Inspector Shahadat has shown extreme inefficiency and negligence. Such negligence from two inspector level senior police officials is in no way acceptable," Judge Saleh Uddin observed.

"If they had done the investigation properly, it would have been easier for the justice seeker to prove the allegation. However, it cannot be said that the poor investigation has failed to prove the allegation beyond any doubt," the judge added.