Moreover, the interview must take place in the presence of an officer of Customs/Central Excise/Enforcement to be nominated by the local Collector of Customs/Central Excise or Deputy Director of Enforcement who has sponsored the detention and this too would seem to be an unreasonable procedural requirement because in order to secure the presence of such officer at the interview, the District Magistrate, Delhi 532 would have to fix the time for the interview in consultation with the Collector of Customs/Central Excise or the Deputy Director of Enforcement and it may become difficult to synchronise the time which suits the legal adviser with the time convenient to the concerned officer and furthermore if the nominated officer does not, for any reason, attend at the appointed time, as seems to have happened on quite a few occasions in the case of the petitioner, the interview cannot be held at all and the legal adviser would have to go back without meeting the detenu and the entire procedure for applying for an appointment to the District Magistrate, Delhi would have to be gone through once again.