In response to lawmaker inquiries, the bureau said the investigation found that the force’s long-standing mechanism of handling detainees has nothing to do with the suspect’s escape.

With human factors in play over the case, the force will undertake disciplinary reviews after the conclusion of court proceedings, it added.

The bureau also said that the force had since reminded officers in report rooms and courts to follow internal guidelines when handling detainees and that they should conduct more thorough checking should the identity of the detainees be in doubt.

The police had also strengthened their training to prevent the occurrence of similar incidents and had actively studied the possibility of adopting new technologies to help officers with their work, according to the bureau.