How long can community monitoring keep records?

According to the inquiry of China Travel Service. Com, the retention period of the monitoring image data formed during the service period of the security company shall not be less than 30 days, and the security service company and the property management company shall not violate or delete it privately. The monitoring system can save the monitored image content in the hard disk, burn it in the CD or save it in the backup storage device, which can be used as a file, and can realize the linkage alarm function with other security systems to find the danger in time.