This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical Jurisprudence, Subject name: Forensic Medicine
Once a case is completed between two paies, it cannot be tried again under the defence, 
Select and explain. 
A. Res indicata, B. Res judicata, C. Composite negligence, D. Corporate negligence
B: Res judicata
Answer: B: Res judicata 
Explanation: 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