In 2011, the California legislature created new classes of methods for dealing with individuals convicted of certain crimes: “Mandatory Supervision” and “Post-Release Community Supervision.” On May 7, a California Superior Court in Alameda County ruled that individuals in those categories may register to vote. The case is Scott v Bowen, RG14-712570.
California law denies persons imprisoned or on parole from registering to vote. The decision interprets these laws not to apply to the two newer categories. This case had been filed by the American Civil Liberties Union earlier this year. See the ACLU press release here. The press release has a link to the decision. Thanks to Rick Hasen for the link.