Great review materials here on the upcoming law trials.
Webinar – https://www.youtube.com/watch?v=4mLD_bXBbAA&feature=youtu.be
Dropbox link with webinar and files- https://www.dropbox.com/sh/3w7sf3276jts4qb/AAA084KY4jPr0PPSIDYhZ7JWa?dl=0
links to just the law trials and game management guidelines
https://www.usarugby.org/referee-resources/ – more information on the laws as well as video resources