At the UNAM, one way to obtain a professional title is a professional exam before a jury. The rules of the Faculty of Engineering call for juries of three examiners and two alternates. The protocol of the College of Library Science states that the exam will not take place under any circumstances unless all three members of the jury are present.
At the end comes the oath. The candidate raises the right hand and answers Sí protesto, “I do so swear.”