Nowadays, the non-governmental crew shall play an important role in national and international arenas. The geographical variety of the activity area and its different performances caused that the governmental crew can not be indifference in respect of the role of these new crew. NGOs shall play role in two modes of "Competitor" or "Colleague" of the governments. In subjects relating to human rights, these organizations shall act as competitor of governments, more. Whereas, in connection with issues like health, development and environment shall be regarded as colleague of governments, more. In Iranian law systems, the action role of these organizations as to the protection of the environment shall be undeniable. But, in reaction stage, there are many vacuums, yet. The suitable grounds should be provided for partnership of such crew in environmental litigation, actively. So that, they can achieve their appropriate place as a pseudo-public prosecutor in criminal proceedings.