Blood samples, DNA presented as evidence by CBI in Kolkata rape case

CBI listed reports of DNA, blood samples and nine other evidence in chargesheet to hold Kolkata Police civic volunteer Sanjay Roy as 'sole accused' in Kolkata doctor's rape-murder. CBI mentioned presence of his DNA on victim's body, presence of victim's bloodstains on his jeans and location of his phone as evidence. Roy's saliva was found on victim's body, chargesheet stated.