Kumaratunga said that the police have approached the bank and sought details of the account but the bank has so far refused to release the information.
She says without the information in hand the police are unable to file any action in court.
Kumaratunga said that some people are raising voices against the delay to take action on some individuals.
However she noted that it takes time to nab a criminal and investigations are ongoing.
She also said that vital information had been unearthed in the murder of former rugger player Wasim Thajudeen.
Kumaratunga said that over a 100,000 telephone calls had to be analysed in the investigations and this revealed several telephone calls he had revived the day he was killed from a key individual.