[OneWingedShark]

If the guy took the officer’s baton and beat him with it, the officer has a right to defend himself.

So then, does the [alleged] perpetrator have the right to defend himself from a police officer with a baton?

[Hugin]

So then, does the [alleged] perpetrator have the right to defend himself from a police officer with a baton?

If he's attacked for no reason while complying with the officer's legitimate orders, of course. If he started it, then no.