(Subscription required) A federal appeals court overturned a California man's insider trading conviction, ruling the trial judge failed to adequately investigate a juror who expressed doubts about his ability to remain impartial.

The 45-mile underground tunnel - known as the Delta Conveyance Project by its advocates - would divert water from the Sacramento River near Clarksburg to facilitate the export of more water to Southern San Joaquin Valley agribusiness and Southern California water agencies. Tunnel opponents say the project would hasten the extinction of Sacramento River winter and spring-run Chinook salmon, Delta and longfin smelt, green sturgeon and other fish species, as well as imperil Delta, Tribal and environmental justice communities.

California’s second attempt to ban federal immigration officers from concealing their faces with masks appears to be doomed under a new federal appeals court ruling. The court also blocked a new California law requiring federal, state and local police to wear badges or other identification.

(Subscription required) A Los Angeles judge allowed sensitive alternative-cause evidence, declined to delay trial, and weighed summary judgment in coordinated social media addiction cases, as defendants challenge causation and plaintiffs push claims forward.