Search and seizure powers permit authorised officers to enter premises, seize evidence and require production, with return and testing safeguards. Section 22 authorises the Director-General, an authorised officer, or the District Collector to enter premises at a reasonable time to search for and seize documents, records, articles or other evidence, make an inventory, and require production of records; the Code of Criminal Procedure's search and seizure provisions apply, seized or produced items must be returned after certified copies or extracts are taken, perishable items may be disposed of as prescribed, and non-perishable items are subject to analysis or tests applied mutatis mutandis.