An abuse of process is the unjustified or unreasonable use of legal proceedings or process to further a cause of action by an applicant or plaintiff in an action. It is a claim made by the respondent or defendant that the other party is misusing or perverting regularly issued court process not justified by the underlying legal action. In common law it is classified as a tort distinct from the intentional tort of malicious prosecution. It is a tort that involves misuse of the public right of access to the courts. In the United States it may be described as a legal process being commenced to gain an unfair litigation advantage.