People involved in the death of Rayhan Uddin, who died in police custody at Bandarbazar Police Outpost in Sylhet, will be brought to book, said Home Minister Asaduzzaman Khan Kamal.

He made the statement at his secretariat office yesterday as journalists asked him about the death of 35-year-old Rayhan.

Police Bureau of Investigation (PBI) was investigating the death. They will check the autopsy report and probe the allegations brought against police by the victim's wife, he said.

"If found guilty, all of them will be brought under trial," the minister said.

Meanwhile, a PBI team yesterday visited Bandarbazar Police Outpost, the crime scene, and also Kashtogarh area, from where Rayhan was reportedly detained by the outpost's police personnel.

Muhammad Khaled-uz-Zaman, special police superintendent of PBI in Sylhet, said, "We've received all related evidences of the primary internal probe body and previous investigating officer of the case; we've started our investigation with visiting all spots involved with the case".

Meanwhile, M Kazi Emdadul Islam, deputy commissioner of Sylhet, also the district magistrate permitted to exhume the victim's buried body and assigned a magistrate to look after the matter.

The order was given upon an application filed by the case's previous investigating officer and sub-inspector Abdul Baten and to conduct autopsy again, Rayhan's body will be exhumed today, PBI special superintendent in Sylhet said.

Rayhan, a resident of the city's Neharipara area, died at Sylhet MAG Osmani Medical College Hospital at 7:50am on Sunday, around an hour after he was admitted there by police.

His wife, Tahmina Akhter Tanni filed a case with Kotwali Police Station accusing several unknown people mentioning that his husband was tortured inside Bandarbazar Police Outpost.

As the internal probe team found involvement of the outpost's police personnel, four including the outpost in-charge, were suspended on Monday along with three others were withdrawn from the outpost.

Meanwhile, in the evidential video footages captured in a CC camera installed by the office of superintendent of Sylhet police near the outpost, it is seen that Rayhan was brought to the outpost at 3:10am on Sunday when we was not found injured and at around 6:30am, injured Rayhan was seen taken out of the outpost, and put in an auto-rickshaw.

Moreover, prime suspect of the case Akbar Hossain Bhuiyan, in-charge of the police outpost, has been untraceable since Monday night.

Muhammad Khaled-uz-Zaman, special police superintendent of PBI in Sylhet, said, "The untraceable situation of the prime suspect is in our knowledge and we are looking into the matter. No minor details of the case will be ignored anyway and will find anyone who is involved".