The initial medical certificate (IMC) is the first forensic document available to a victim of personal injury as a key element in subsequent legal proceedings. It is a particularly frequent, serious and serious act in medical practice, given the medico-legal repercussions that can result from imperfect drafting.In this work we propose to evaluate the quality of the writing of MIFs in road traffic accidents (MVA) written by the victim's attending physician, to discuss the legal aspects of these certificates for the victim, the person responsible for the trauma and the certifying physician and to propose rules for writing an initial medical certificate for a person who has been the victim of a road traffic accident in order to guarantee a better quality of writing.To do this, we conducted a prospective, descriptive and analytical study of all the IMCs written by the attending physician of a victim of MVA and collated at the forensic medicine department of the Habib Bourguiba University Hospital of Sfax, Tunisia, as part of a medico-legal examination over a period of four months:From September 1 to December 31, 2018.