"Come on tell us how they did it!"
Pensioners calling in the fuzzies is a nice way of avoiding giving away the usual method:
Detection as (or before) it enters the country, interception and substitution with a fake substance, then watching like hawks to see where it goes.
https://www.stuff.co.nz/national/crime/112313782/christchurch-men-admit-importing-40kg-of-meth-from-mexico
Note how long they watched that warehouse. In previous cases they let dealers sell on the fake products, staked out where packages were being sent and then arrested the recipients too.
Incidentally, it's worth noting that the "Rathkeale Rovers" are at least as heavily involved in all this as central american cartels and have been fingered in large shipments into NZ/Australia/EU - UKites will recognise them, or should do when they look up the name. Perhaps all the other illegal activity is just a distraction from the real moneymaker.
Biting the hand that feeds IT
