Nope. I paid for the products and they have no right to search me.

Even at Costco, if the line is too long, I just walk out without letting them search me.

Criminals are dumb. They carry evidence of their crimes on their person all the time.

Source: I know a NZ customs agent personally. I haven't asked her what she thinks of this.

They already have their low-tech ways.

A friend of mine said that in Afghanistan after the war with Russia, when they bought a new piece of land they would just let their sheep and goats graze all over it unattended for a few days. If one of them found a mine, they were dinner.

This is not entirely true. Drugs cannot be regulated by the FDA unless they have harmful side effects. They are not allowed to regulate things such as vitamins.

Is a vitamin medicine by your definition? After all vitamins treat all sorts of diseases such as beriberi, scurvy and rickets, despite not being "medicine" at all.

In the same way, there are effective nutritional supplements that prevent or treat diseases, but have no harmful side effects. Glucosamine/chondroitin has proven very effective in treating joint pains and injuries. But there are no regulations on it, because it has no harmful side effects. If your definition of "medicine" is only what drug companies produce, then you are incorrect.

All this said, most homeopathic medicine is complete bunk and those that aren't have had studies done as to their effectiveness, even if they have no harmful side effects.