S. 132 : Search and Seizure-Statement in the course of search-Retraction-Retraction not to be rejected as afterthought merely because filed after search, retraction is held to be valid-Warrant of authorisation-Not necessary to issue warrant of authorisation in each and every case-Search proceedings continuing for number of days and assessee required to be present throughout-Does not mean that the assessee has kept in illegal detention. [S. 132(4)]