The new Public Curator Act systematically requires medical and psychosocial evaluations. In confronting the letter and the spirit of the law to its regulations and operating procedures (and inversely), this article outlines the various tasks that will fall under the responsibility of health and social service professionals. Following a brief presentation of the law, the authors describe how the role of these professionals is limited to evaluations for the purpose of conducting expert appraisements, a matter which raises a great deal of concern. In addition, the two key notions of "inaptitude" and "need" are discussed in their legal sense, along with their consequences from the medical evaluation and psychosocial standpoints. The latter in particular will be analyzed regarding implementation difficulties. The authors conclude with a general commentary that is likely to give meaning to that simple and sometimes routine gesture consisting of "completing a form".