> it is illegal to have two or more people gather together in public while each wearing any sort of disguise or mask[2]

Wearing a mask in public (or on private property without written consent) is a felony in Virginia punishable by up to 5 years in jail.

This has allowed for the identification and exposure of many attendees of the Nazi riot on August 11-12, 2017 who may have otherwise concealed their identities.

https://law.lis.virginia.gov/vacode/title18.2/chapter9/secti...