The following excerpt is from In re Novatel Wireless Sec. Litig., Civil No.08cv1689 AJB (RBB) (S.D. Cal. 2014):
Intervention is a procedure by which a nonparty can gain party status without the consent of the original parties. United States ex rel. Eisenstein v. City of New York, 556 U.S. 928, 933 (2009) ("Intervention is the requisite method for a nonparty to become a party to a lawsuit"). There are two types of intervention: intervention of right and permissive intervention.
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