Many of my coworkers order tons of crap of things like aliexpress or deal extreme and those packages are substantially never opened in customs - they may be checked by sniffer dogs, but I doubt it.
I order plenty of things from abroad that aren't illegal or evading duties. The UK, for example, has no VAT or import duty on items costing less than £15.
Just the other day I ordered £0.99 worth of self-adhesive hooks on ebay, with free shipping from Hong Kong.
It's hard to say whether the parcel passed an inspection that left no marks, or whether it just wasn't inspected.
Those are all legal items and they are below the import charges so none are paid - however if they had been drugs, do you think they would have been labeled with the correct price/content?
