Two or more persons who are jointly and severally liable for the same tort. It means that the claimant can sue both (or all) of them or recover the whole of amount of any one regardless of the extent to which each participated. A tortfeasor held wholly liable for the damage has a right of contribution from other tortfeasors liable for the same injury/damage (Civil Liability (Contribution) Act 1978). Vicarious liability is a principal instance of joint tortfeasors.