The Income Tax department will soon summon former Jharkhand Chief Minister Madhu Koda for "detailed questioning" on alleged hawala transactions and investments made by him and his associates.<br/><br/>The department carried out country-wide searches on at least 70 premises associated with Koda yesterday and seized voluminous documents, computer peripherals and other records pertaining to bank details and investments.<br/><br/> Official sources said; the department will issue notices to Koda and others for "detailed questioning" after the completion of scrutiny of the seized material, <br/>The sources added some questioning at the time of searches was done by tax officials but they were largely cursory. A detailed questioning is required, as the documents taken into custody are huge.<br/>