Tutor Perini Corp. and Frontier Kemper Constructors were sued Monday in California Central District Court under the whistleblower provision of the Sarbanes-Oxley Act. The case, which arises amid construction of the Los Angeles metro rail’s Purple Line Extension, was filed by Hengl & Cowan on behalf of a former employee. The plaintiff, Calvin Liu, alleges that he was wrongfully terminated after reporting violations of environmental protection statutes. Counsel have not yet appeared for the defendants. The case is 2:21-cv-05803, Liu v. Tutor Perini Corporation et al.

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