What Do I Need to Prove to Sue for Wrongful Interference with Employment Relationship? Generally, there are three types of tortious interference recognized in California.One is interference with contractual relationships (IWCR). For one to recover for tortious interference with contractual or economic relations, "the interference must have been wrongful or unlawful. Tortious Interference With an Advantageous Business Relationship . . . . . . . . . . . . 713. N. "Wrongful Discharge" Claims in Unionized Setting . State-by-state survey of laws governing tortious interference claims of restrictive covenants and noncompete agreements. "State Common Law Wrongful Discharge Doctrines: Up-date, Refine- ment, and Rationales," 33 Am. Bus. Rule of Reason Is Applied to Sec. 2 Plaintiff labelled this claim as "tortious interference with economic relations," but it is recognized in.