The documents missing are of the case filed against JMJB operatives for carrying out bomb attack in a Bogra village.

Ahmedullah, first class magistrate of the court concerned, claimed that the documents are kept in the court. But court sources said that the case documents are now kept under lock and key at the Deputy Commissioner's (DC) office. They had been in the custody of Bogra police before.

Mostafizur Rahman Mridha, first class magistrate of Bogra, said, "According to the article 156 of criminal procedure, case documents can neither go to the deputy commissioner nor to the superintendent of police when the investigation is still on."

Despite repeated attempts, the DC of Bogra could not be reached to verify the information provided by the court source.

Earlier, documents of another case filed against three JMJB activists disappeared from the court after a first class magistrate of Bogra had officially recorded statement by the JMJB operative Shafiqullah on February 6. The case was filed with Gabtoli Police Station under the Explosives Substances Act.

Another source of the district police said investigations in both the cases have stalled unofficially for some unknown reason.

"Although some of the accused are included in both the cases, the investigation officers have stopped exchanging information," added the source.

The source also said that the Bogra police are considering handing over the cases to the Criminal Investigation Department due to slow pace of the investigations.

The investigation officers of the cases might be changed within a few days, the source added.