There is only one detention center in a prefecture-level city without districts, that is, Zhongshan Detention Center.
Henglan town, detained in driving without a license, Zhongshan City, will be held in Zhongshan Detention Center.
Legal link: Article 5 The local people's governments at or above the county level shall set up detention centers according to their needs. The establishment and cancellation of detention centers shall be proposed by the public security organs of local people's governments at or above the county level, and shall be examined and approved in accordance with the prescribed authority and procedures.