Ref. No. 39/1062
In the name of Allah the most gracious the most merciful
The answer to your question is as follows:
Installation of CCTV cameras without a genuine (shariee) reason is not allowed. Today people are using it mostly as fashion. So it should be avoided. Nevertheless, in sensitive areas or wherever it is truly necessitated, installation of CCTV camera is allowable.
And Allah Knows Best
Darul Uloom Waqf Deoband