ACLU Foundation of Southern California is an affiliate of the American Civil Liberties Union (ACLU) Foundation conducting left-of-center social policy litigation and advocacy in southern California.
Check the Sheriff Coalition
Check the Sheriff Coalition is a coalition in Los Angeles, California formed to oppose the policies and actions of Los Angeles County Sheriff Alex Villanueva. The Coalition has demanded that Sherriff Villanueva resign, and that the California Attorney General investigate the Los Angeles Sherriff’s Department (LASD). 
The ACLU Foundation of Southern California is a member of the coalition. In May 2021, the Coalition presented a report alleging that the LASD had harassed the families of people shot by LASD deputies. The report was published in coordination with the American Civil Liberties Union Foundation of Southern California, the Check the Sheriff Coalition, Black Lives Matter Los Angeles, and Centro Community Service Organization.  Rebecca Brown, an attorney and legal fellow at the National Lawyers Guild, wrote the report.