<prompt> Once a case is completed between two paies, it cannot be tried again under the defence,Res indicataRes judicataComposite negligenceCorporate negligence  <response>: Res judicata means the things have been decided: according to this rule, once a case is completed between two paies, it cannot be tried again. For example, a patient sues a doctor in a negligence case and things are decided; he cannot sue the doctor again in the same case. Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 383 