How long has the Swan City Hotel in Zhengzhou been monitored?

Three months. General hotel surveillance video can be saved for 1-3 months. The state requires hotel surveillance videos to be kept for more than one month, and large hotel surveillance videos for more than three months. Zhengzhou Swan City International Hotel is the first luxury business five-star hotel invested and built by Sanmenxia Municipal Party Committee and Municipal Government (state-owned enterprise) in Zhengzhou, which integrates government reception, business, leisure and conference. Therefore, monitoring should be maintained for 3 months.