SA Australian Law - Wearing Masks in Public During Public Protest - Legal?

[iPhone 6]

I am planning a sensible public protest, and I intend to conceal our identities using blank masks.

Is this legal under Australian Law?

If so:

If asked by an authority, is it necessary to reveal our identities (since we are obviously not a threat)?

Thanks.

 

[AllForHer]

As far as I am aware, concealing your identity at a protest is not illegal, but it is my understanding that you are obligated to provide a form of a identity to a police officer if it is asked of you.

 

[Sophea]

I agree. I don't know of anything that prevents you from visually concealing your identity in public.

 

[Tim W]

It's not an offence to wear a mask.

But to use it a mask to conceal your identity,
or if you to refuse to remove it when police ask you to do so,
then that can be an offence.

As a matter of law, wearing a mask to conceal your identity in a protest,
is not very different to wearing a mask to conceal your identity
in an armed robbery.