DNA samples from three accused in the case over rape of an eight-year-old girl in Magura were collected on Tuesday night for testing.
The samples were sent to the Criminal Investigation Department鈥檚 DNA profiling laboratory in Dhaka for analysis, said additional superintendent of police Md Mirajul Islam.
Following the rape incident, the victim鈥檚 mother filed a case on March 8 and then all the accused were arrested.
The victim is now on life support at the Combined Military Hospital in Dhaka.
The incident occurred when the victim visited her sister鈥檚 in-laws鈥� house at village Nijnanduali in Magura鈥檚 Sadar upazila.
She went to bed with her sister at night, but in the dead of night, her sister found her missing and began searching for her.
After a frantic search, the girl was found unconscious a few yards away from the house.
She was initially admitted to Magura General Hospital and later transferred to Faridpur Medical College Hospital as her condition deteriorated. On Thursday, she was moved to Dhaka Medical College and Hospital before being shifted to the Combined Military Hospital, Dhaka.
Meanwhile, university students, including that of Dhaka University, staged demonstrations early Sunday on their respective campuses, demanding the death penalty of the accused.
Home affairs adviser Md Jahangir Alam Chowdhury visited the girl at the CMH on Sunday and said the rapists will not be spared as the state is determined to ensure justice.