"Gang affiliation" refers to a person's connection or association with a particular gang. It means they are involved with that group, often participating in their activities or adopting their beliefs and behaviors. Full definition
Last spring, I posted a comment flagging the constitutional concerns surrounding section 69.1 of the Gaming and Liquor Act, RSA 2000, c G - 1, the province's gang affiliation law (here). (ablawg.ca)
The ACLU has filed a class - action lawsuit alleging that the Trump administration is falsely accusing immigrant teens of gang affiliations in a concerted effort to deport them. (wamc.org)
Correction officials said McKinsey's services have been critical to boosting the safety environment at Rikers — including developing an analytic tool that helps classify where inmates should be housed based on factors such as gang affiliation and age. (nypost.com)