What is the notification sent to the respondent to join a case called?

In legal terminology, the correct term for the notification sent to a respondent to join a case is typically referred to as a "Case Summons." A summons serves as a formal notice to the respondent, informing them that they are being called to appear in court or to respond to a legal action initiated against them. It is a critical document that ensures due process is followed, as it officially alerts the respondent to the existence of a case and their obligation to participate in the proceedings.

The other terms do not accurately describe this legal notification. "Notice Delivery" is not a standard legal term used to refer to the process of summoning a respondent. "Response Invitation" suggests a more informal invitation rather than a formal legal requirement. "Formal Notice" could pertain to various types of notifications but does not specifically indicate the context of summoning a respondent to a case. Therefore, the role of a case summons in legal proceedings is significant, as it maintains the structure and organization of the judicial system by ensuring all parties involved are properly informed and can uphold their rights.