The reconsideration organ of this case is the Nanguan District Government of Zhongshan City or the Zhongshan Public Security Bureau. Reason: Article 12 of the Administrative Reconsideration Law of People's Republic of China (PRC) refuses to accept the specific administrative actions of the departments of local people's governments at or above the county level. The applicant may choose to apply for administrative reconsideration to the people's government at the same level or the competent department at the next higher level.

There is a third person, and the third person is Don. Reason: The administrative third party refers to a citizen, legal person or other organization that has a legal interest in a specific administrative act, except the administrative counterpart, which is not directed subjectively, but may or has infringed on its legitimate rights and interests objectively. In this case, the citizen who has a legal interest in the specific administrative act is Tang.