Recent scandals involving the use of human body parts have highlighted the need for legal clarification surrounding property law and the use of human tissue. This book advances the notion that the legal basis for dealing with this is already available in the law but has thus far neither been used nor discussed. Proposing an alternative approach to constructing entitlements in human tissue and resolving resulting property conflicts, a new methodology is also advanced for abstracting different concepts within the debate which enables comparison and distinction between different cases of entitlement and retention.