To reiterate, we don't have any legal authority to check containers for counterfeit goods coming in or out of the country. That was from the discussion earlier.
Generally speaking, customs officials do have the authority to inspect exports leaving the country, provided that, again, as mentioned earlier, the exportation of that good is prohibited or controlled or regulated under a piece of legislation. So it's the exact same regime, if you like, as importation.
Customs officials will inspect containers of goods being exported provided they are prohibited or they need, say, a permit under the Import Export Permits Act. But unless and until it is prescribed in legislation as requiring control, prohibition, or regulation for leaving the country, then no, we do not examine or interdict things leaving the country.