Block some block IP to access IP CCTV

Hi everyone, I’m newbie here

I need to configure some IP can’t access on IP cctv, maybe someone can help me how to configure it

Sample case,

192.168.1.0/24 (IP CCTV)
192.168.10.0/24 (IP for office Security)
172.16.0.0/22 (IP for user)
10.10.0.0/22 (IP for user)

How to block akses on CCTV from user (172.xx & 10.10xx can’t access IP CCTV 192.168.1.0/24), CCTV only can access using IP CCTV & IP office Security

Check:
http://forum.mikrotik.com/t/how-to-block-subnet-to-subnet-access/174992/1