About the California Anti-SLAPP Project

The California Anti-SLAPP Project (CASP) is a public interest law firm and policy organization dedicated to fighting Strategic Lawsuits Against Public Participation (SLAPPs) in California. Often these suits are filed in the form of claims of defamation, libel, slander, malicious prosecution and/or abuse of process, among others.

Also active in legislative advocacy, CASP led a statewide coalition to secure enactment of the California anti-SLAPP law, Code of Civil Procedure, section 425.16, in 1991 and 1992, as well as strengthening amendments in 1997 and 1999. CASP was also a co-sponsor of SB 789 (Kuehl) in 2002, which was designed to prevent corporate abuse of the anti-SLAPP law. The legislation was signed into law in 2003, creating new section 425.17 of the Code of Civil Procedure. CASP was also the sponsor of AB 1158 (Lieber) in 2005, which amended the anti-SLAPP law and created new section 425.18 of the Code of Civil Procedure, dealing with SLAPPbacks. CASP also co-sponsored AB 2433 (Krekorian) in 2008, which amended Code of Civil Procedure sections 1987.1 and 1987.2 to allow anonymous Internet speakers whose identity is sought by a subpoena in California, based on a lawsuit in another state, to challenge the subpoena and recover attorneys fees if they are successful.

Mark Goldowitz – Founder and Director

Mark Goldowitz has specialized in First Amendment and anti-SLAPP issues since 1993. He and his clients have prevailed in ten published appellate opinions, including the first opinion by the California Supreme Court arising from the anti-SLAPP law. He and his clients have prevailed in more than 100 anti-SLAPP motions, in 23 counties throughout California, and in decisions by four of the six district courts of appeal.

His status as an expert in anti-SLAPP law has been recognized in four appellate opinions. He frequently consults about, and has written and lectured widely on, the California anti-SLAPP law. He is a 1972 graduate of Harvard Law School and a member of the California Bar.

Goldowitz is also founder, and President of the Board of Directors, of the Public Participation Project, which is leading the campaign for federal anti-SLAPP legislation, and to expand state laws to protect against SLAPPs.


Contributing Blogger Evan Mascagni

Evan Mascagni – Contributing Blogger

Evan is a former attorney turned documentary filmmaker and First Amendment rights advocate. Mascagni joined CASP straight out of law school and has gone on to become the Policy Director of the Public Participation Project, where he is passionate about protecting the free speech rights of filmmakers, journalists, and activists across the country.  

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The information on this website is not, nor is it intended to be, legal advice. The information here is meant to provide general information to the public.