This is the first description of the questions that clinicians ask a department of clinical law, relating to the legal rules applicable to the care of their patients.ObjectivesTo describe in detail the demography of clinical legal enquiries made by clinicians of all professions concerning the care of their patients. To collate and categorise the varieties of enquiry, to identify phenotypic patterns. To provide colleges, regulators, commissioners, educators and the NHS with an insight into hitherto undescribed subject matter, better to understand (...) and respond to this aspect of clinical practice.DesignProspective collection of all clinical legal referrals recorded in writing over 12 years by a department of clinical law.SettingAn English Tertiary Hospital NHS Trust.ParticipantsClinical staff of the regulated professions, all seeking to have their clinical legal enquiries answered.Main outcome measuresThe description of the demography of clinical law.Results1251 written records were identified and reviewed. These were divided into nine broad clinical legal subject areas (domains): mental disorders, parents and children, incapacity, consent for treatment, disclosure of private information, other statutory, regulated practice, professional practice, clinical practice. Within these, 149 clinical legal phenotypes were identified to which each case could be assigned.ConclusionsAmong a broad range of enquiries, recognisable clinical legal phenotypes exist and have for the first time been described and categorised. These are clinical situations which clinicians need to be able to recognise and equipped to deal with. Doing so will likely facilitate timely and better treatment. (shrink)