Mount Lavinia magistrate Mohamed Mihail ordered the senior policeman to give the statement at 1.00 pm on February 21.
Police sources say his statement will confirm the evidence gathered by the CID with regard to the killing of the journalist.
If Adhikari, who is barred by courts from leaving the country, conceals the truth, a top Army official is to be questioned again.
There is evidence that a relative of this military official, who held a highest position in Army intelligence at the time, is among the officers involved in the killing.
‘Ravaya’ has reported that a powerful government figure connected to the executive is preventing the arrest of the suspects.