Police is powerless to act against him - just sends notices - like the sent Maulana Saad.
The Delhi had reportedly booked Zafarul Islam for sedition (IPC Section 124A) and promoting religious animosity (IPC Section 153A) on April 30. A First Information Report (FIR) was registered against Zafarul, following a complaint by a Delhi resident.
Several Muslim leaders have come to his rescue by accusing the Delhi police of assuming a “biased role.” A statement by them read, “This kind of action during the lockdown, exactly before iftar time, against the head of a quasi-judicial institution, gives an idea about the level to which the police can stoop.”
source: https://www.opindia.com/2020/05/zafarul-islam-delhi-police-notice-submit-facebook-laptop-sedition/