PHIndividuals such as lawyers, attorneys, or senators cannot ethically lead or participate in an investigation in which they are implicated. This principle is rooted in the concept of conflict of interest and the need for impartiality in legal and legislative processes. For example, a senator facing accusations may invoke their right against self-incrimination during inquiries, as seen in various cases where individuals refused to answer questions related to their involvement in alleged crimes.
Furthermore, legislative inquiries must respect due process and cannot serve as a means of prosecution.