A private attorney general is an informal term originating in common law jurisdictions for a private attorney who brings a lawsuit claiming it to be in the public interest, i.e., benefiting the general public and not just the plaintiff, on behalf of a citizen or group of citizens. The attorney may, at the equitable discretion of the court, be entitled to recover attorney's fees if they prevail. The rationale behind this principle is to provide extra incentive to private attorneys to pursue suits that may be of benefit to society at large. Private attorney general suits are commonly, though not always, brought as class actions in jurisdictions that permit the certification of class action lawsuits.