Street gangs have their hands in everything from fraud, sex trafficking, drugs on all levels, robbery and money laundering. Not every gang has the same structure some are loosely organised and others are have ranks, some just organise around drug trafficking. There are also older members involved in a lot of gang activity especially when it comes to drug trafficking and other schemes.

Heres some reading for you.

nyc's most dangerous gang

Kansas City at centre of gang scheme that hires homeless people in fraud scheme.

Heroin, LLC

anatomy of a heroin ring

8 trey gangster crips pain pill pipeline

largest pcp bust on record ties to bounty hunter bloods