The Fifth Annual Law Day Yosemite will be held this year from 10:00 AM until Noon, Friday, April 28, 2017, at Half Dome Village (formerly known as Curry village) in Yosemite Valley. It is open to the public. Entrance fees will be waived for attendees. https://www.nps.gov/yose/learn/news/lawday2017.htm
Source: Yosemite National Park News