1. Introduction The discourse in the interrogation process is one of the most interesting and valuable areas of language research. What creates the discourse of an interrogation is the sequence of questions and answers among the participants in an interrogation interaction. The INTERROGATOR, including the police, the INTERROGATOR, the judge, etc., uses the Q&A strategy to control the conversation and interact with respondents, including witnesses, defendants, informants, etc. This study sought to answer the following questions: 1. How many questions can be used in the interrogation process? What is the degree of control and the pragmatic role of each question? Among the studies on the use of language in the judicial system, it seems that the discourse of interrogation and verbal interaction in this area has not been seriously discussed, and in this respect, the present study may provide insights into the interrogation process and the participants in the interaction which has not been investigated so far. . .