80. parties

In law, parties refer to the individuals, groups, or entities directly involved in a legal case, contract, or dispute. The two primary types of parties in litigation are:

  1. Plaintiff (or Petitioner) – The person or entity bringing the case to court.

  2. Defendant (or Respondent) – The person or entity against whom the case is brought.

Other types of parties include third parties, intervenors, and amici curiae (friends of the court) in legal proceedings. In contract law, parties refer to those who sign and are bound by the agreement.


Essential participants in lawsuits, contracts, and negotiationsCan be individuals, corporations, governments, or organizationsHave legal rights, obligations, and responsibilitiesMay include multiple plaintiffs or defendants in complex cases


  • In a criminal case, the state (prosecution) and the accused (defendant) are the primary parties.

  • In a civil lawsuit, the plaintiff sues the defendant for damages or relief.

  • In a business contract, two companies sign an agreement, making them the contracting parties.


5 Reference Pages for Parties with URLs

  1. Legal Information Institute – Party (Legal Definition)

  2. Justia – Legal Parties in Civil and Criminal Cases

  3. FindLaw – Who Are the Parties in a Lawsuit?

  4. US Courts – Role of Parties in a Legal Case

  5. Wikipedia – Legal Party


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