You've probably heard of the job of a coroner. It is a very widespread profession nowadays, thanks to programs such as CSI, Bones, Dexter, among many others that reveal a little about the daily legal professional life. It is clear that the series are a bit imaginative and dramatized: it is not up to the expert to interrogate suspects and the skills are not always so quick. Depending on the type and state of the evidence, it may take months to conclude an expert opinion. [5]However, the series attracted people's attention to this kind of profession, as if it were some kind of attraction. And this, obviously, is enhancing this new area of ​​Brazil, which despite having many shortcomings such as the lack of literature in Portuguese and the lack of specific courses and forensic sciences in universities, is developing more and more. He gained greater knowledge of this area through a journal I returned home from the regional chemistry board. And it was from there that I became interested and started doing research in the forensic field. So here I am, referring to the profession of genetic medical examiner. First, let me introduce what a medical examiner does, according to my knowledge based on [3] and [5]. The expert's work basically consists of collecting and analyzing the traces left at the scene, subsequently transforming them into concrete evidence that can convict or acquit the accused, through meticulous assessments. There are two types of experts: those in the field who collect evidence at crime scenes and those who analyze traces in the laboratory. And among the many remains left at the crime scene are biological evidence that can identify, through collection, analysis and comparison to whom the DNA was extracted. belongs to the crime scene. " Given that for...... half of the article ......t current and popular case we can clearly see not only the use of forensic genetics but also in other areas of this science was the "Isabella case ." The girl was defenestrated from the window of the building of her father, Alexandre Nardoni, on March 29, 2008. The case had repercussions throughout the country and the world was solved with the help of experts and her father and stepmother of the girl were convicted. [4]The techniques as well as the study of DNA in forensic genetics are still under development. The improvement can guarantee greater efficiency in the analyzes and therefore greater reliability in forensic tests. apparently intractable cases can be clarified and people wrongly accused can be acquitted. And this is how forensic science will proceed: to clarify the facts and achieve justice .