Pesticides and herbicides, credit-checking, drug distribution and drug retailing have grown more concentrated, too.

农药和除草剂、信贷调查、药品分销和药品零售也越来越集中。

Instead of relying exclusively on hard men, criminal outfits also needed foreign connections to import the drugs, distribution networks to sell them and a way of laundering the cash.

犯罪团伙需要国外货源、分销渠道以及洗钱途径，而不仅仅是几个硬汉。