In Ireland where you find a...

 ... public house or houses,you will also find a gambling establishment or establishments close by. That is how both of them make their money. That fact represents one of the inner workings of Provisionalism.

Counterposed to the IRA was Blair's  Government and police interception of communications. This state response and police activity bred personal chaos for many victims of Blair's Terror. The overriding message of indulgence of Ireland 's mortal foes was political fripperies and public doles.

Public houses, gambling establishments and the rise of political violence in the North?

If you like,"Aithnionn ciarog ciarog eile!" (The Gaeilgeoiri). 

Or,yet again,"Like attracts like" ( The wise old teacher). 

Yet again," One thug or criminal is pretty much like any other since they tend to congregate in the one place" ( The Gardai Siochana). 

Or,once again,"Birds of a feather flock together" (The Wise Old Judge).

You might also say about a drunken police playmaster that he tries to set people at one another's throats.