At least eight police officials including seven detective branch (DB) men were closed on Monday centering a clash at a restaurant in front of Chuwrongi Park in the city's Khanpur area on Sunday night.
The officials are DB's inspector Masudur Rahman, Sub-inspector Mizanur Rahman and Abu Sayem, Assistant Sub-inspector Azizur Rahman, Dewan Tafiq, Bakul Mia, Aminul Haque and Constable Lutfar Rahman.
Following the incident, a three member probe body has formed said Nur-e-Alam, additional superintendent of Narayanganj DB police adding that necessary legal measures would be taken if those police officials are found guilty.
Sources said DB officials - Aminul Haque and Bakul Mia came for some drinks at 'My Life' fast-food restaurant where they locked in an altercation with the restaurant owner Jalal Uddin's sons - Rabin and Alauddin - as the officials started to go away without paying the bills.
At one stage, the two officials started to beat them up introducing as police official. They also harassed restaurant owner Jalal Uddin and his wife Rina Yesmin as they tried to protest them.
Later, nearby businessmen rushed in and locked into a clash and beat up the police officials.
On information, additional police come to the spot and brought the situation under control after charging with batons on the businessmen, they added.
According to Rina Yesmin, Sub-inspectors Aminul Haque and Bakul Mia with a woman came to take lassi in the evening and attempted to leave the restaurant without paying their bills.
Two separate cases were filed with Sadar Police Station in this connection. DB's Sub-inspector Aminul Islam filed those cases. One filed against restaurant owner Jalal Uddin, his sons - Rabin and Alauddin, wife Rina Yesmin, and 20 other people. Another case filed against unknown 40 others, UNB reported.
Sub-inspector Aminul Islam alleged that he filed the case as the restaurant owner along with nearby businessmen swooped with indigenous weapons on them and obstructed the duty of police.