Valid claimant and defendant

• Hunter v Canary wharf


  only claimants with an interest in the land will be able to claim (not members of family eg children)
• Tetley v Chitty


  The person who is causing or allowing the nuisance can be sued
• Sedleigh v O'Callaghan


  defendants liable if know about a problem and fail to deal with it (even if didn't create it himself)