entities and organizations or enterprises regardless of their organizational and legal form and forms of property required information, documents and materials; c) to receive explanations from officials and civil servants of public authorities, local self-governance bodies in villages and settlements (Jamoats), entities and organizations or enterprises regardless of their organizational and legal form and forms of property excluding judges on questions that require clarification in the course of the examination of complaints; d) to conduct an investigation of the activity of state bodies, local executive authorities, local self-governance bodies in villages and settlements (Jamoats), entities, organizations or enterprises regardless of their organizational and legal form and forms of property independently or jointly with competent state bodies, officials and public servants; e) to commission competent state bodies and scientific institutions to conduct expert research on the issues that need to be clarified in the process of investigation of a complaint; 2. On matters of his activity the Human Rights Ombudsman shall enjoy the right of access without delay to leaders and other officials of state bodies, local self-governance bodies in villages and settlements (Jamoats), entities, organizations and enterprises regardless of their organizational and legal form and forms of property, to leaders of public associations, members of the leadership of officers of military forces and formations, heads of the administration of places of criminal and administrative detention facilities located on the territory of the Republic of Tajikistan. 3. The Human Rights Ombudsman shall have the right to participate at the sessions of Majlisi Milli and Majlisi Namoyandagon of Majlisi Oli of the Republic of Tajikistan, at the meetings of Government of the Republic of Tajikistan and other governmental bodies. Article 13. Right of the Human Rights Ombudsman to conduct examinations on his own initiative 1. Upon receiving of the information about mass or gross violation of rights and freedoms of a person or citizen, or in cases which have special public importance or in cases related with necessity to protect interests of people who unable to use legal means of protection independently, the Human Rights Ombudsman shall have the right to take appropriate measures within his competences on his own initiative. CHAPTER IV ACTIVITY OF THE HUMAN RIGHTS OMBUDSMAN ON STRENGTHENING GUARANTEES OF THE PROTECTION OF THE RIGHTS AND FREEDOMS OF A PERSON AND CITIZEN Article 14. Submission of complaints to the Human Rights Ombudsman