Answer: reciprocal connection
Explanation: In simple words, reciprocal connection refers to a business or societal arrangement in which two parties exchange any commodities or service for each others benefit.
In such an arrangements the understanding between the two parties remains clear with no specified end to the contract. In the given case, illegal busies owners are paying a certain amounts to criminal for protecting them for competition and other such issues.
Thus, we can conclude that the correct answer is reciprocal connection.