This study aims at to highlighting the restrictions that reply on the freedom of public prosecution in motivating public advocacythe study of these restrictions characterized by theoretical and practical importance. Theoretically, knowledge of the exceptions that guide public prosecution in motivating public advocacy contribute in part in the scientific analysis in the field of research and legal studies, but in terms of practical importance there is no doubt that it empowers those who are engaging in law and members of the community to know those restrictions and the necessary action to move the public advocacys and the effects of non submission. They are scheduled to protect the interest of the owner who has the right to submit. Therefore, this study has arranged to answer the following questions: 1-What is the public advocacy? 2-What is the Expertise of public prosecution? 3- What is the extent of public prosecution freedom in motivating public advocacy? 4-What are the restrictions on the freedom of public prosecution in motivating the public advocacy?. 5-What are the complaints and crimes that move public advocacy? 6- What are the effects of complaint' submitting? 7-What is the concept of demand and the crimes that move public advocacy to wards making the request? 8-What are the effects of concession request? 9-What is the definition of authorization? 10-What are the cases of authorization? The researcher adopted the analytical approach with comparison with some legislations whenever possible. To conclude with, the researcher reviewed the most important results and presented some recommendations.