The house was just about a kilometre and a half from the Bangladesh Commerce Bank branch that was robbed on Apr 21.
Apart from four DB jackets, police also found a large number of bottles of energy-boosting tinted oil and medicine in the tin-roofed house of Shajahan Mia at Aragaon vilage on Sunday.
Police could not, however, arrest Mia. His mobile-phone was found to be switched off.
His wife Hasina Begum could not give any information about his whereabouts. Their three sons study at a local madrasa.
Assistant Superintendent of Police (ASP) Nazmul Hasan Kiron said Mia’s wife and sons were under police surveillance.
Police searched the house following information given by one of the robbers held on Saturday, the ASP said.
He did not reveal the man’s identity in the interest of the investigation.
Police suspect the robbers had been carrying out criminal acts by donning the DB jackets and had been planning the robbery for long.
“Three of the robbers, with blood of the people they killed on their bodies, hid in this den for long after the robbery,” ASP Kiron said.
“Police raided every house near the bank on the day after the robbery. Even the adjacent room was searched. But two veiled women told police that no one else was in the house. So police went away,” he said.
He said the robbers could have been arrested if the house was searched that day.
Police have so far arrested eight of the criminals after the heist that left seven killed.
A robber held by the locals was lynched.
Almost the entire looted money was recovered.
Police suspect extremist links with the robbery.
