Bottom line, the people doing the searches at CBC inbound are Customs, they like in any country i have visited have the right to search luggage/belongings of visitors/crew entering the country. They are looking for prohibited items. If they suspect there is something to give them cause for a search of bags/person they have every right to. History has shown that there are smugglers of exotic sustances amongst a minority of Cabin Crew.
However, what we as crew need is an official protocol from management at EK when those searches get rather more invasive. This is what is lacking at the moment. May i suggest if a "search" of more hidden places is required by security or Customs, then at least we stay around or better than that CCM's or F/Deck managers.
If you have bad experiences write to FDM.
EGGW.