Predefined time for CCTV camera

Is there any predefined time period for CCTV Camera logs retention according to best practice or law or guidelines. I tried to find out but no where getting specific time period. Or it will be based on contract or service obligation, business need.
 

Answer:

If your question is about logs related to the control of the software of the CCTV camera (registration of user access, shutdowns of the system, incidents, etc.) there is no predefined time period, so it depends on the interests of each organization.
But if your question is about recorded images, it can be related with personal data, and generally each country has laws (related to personal data) to establish a time limit to maintain these images (in Europe in some countries is 30 days)
This list about laws, related to information security, of each country can be interesting for you “Laws and regulations on information security and business continuity” : https://advisera.com/27001academy/knowledgebase/laws-regulations-information-security-business-continuity/