Civil Liability Act 1961
Joinder of defendants.
13.— An action may be brought against all of concurrent wrongdoers or against any of them without joining the other or others, but the court shall have power—
( a) in an action for the execution of trusts, to require the trust estate to be properly represented;
( b) in an action where the title to property is in question, to require the joinder of all those interested or claiming to be interested in the property.