Registration revocation procedure requires notice, inquiry, and opportunity to respond and a representation period before final administrative order. The Commissioner issues a written notice stating proposed grounds for revocation and requires a written defence within not less than forty-five days and indication of desire for an oral hearing. The Commissioner may direct a Deputy/Assistant Commissioner to inquire within three months into grounds not admitted. The inquiring officer considers documentary and oral evidence, allows cross-examination, records reasons if evidence is excluded, prepares a report, and the Commissioner furnishes that report to the Authorised Courier, allowing not less than sixty days to submit representations before passing orders.