British Columbia

It's almost certainly this patch:

https://static.972mag.com/www/uploads/2021/10/WhatsApp-Image-2021-10-19-at-21.25.48-1000x668.jpeg

The article does a bad job describing it. It's not really an Israel flag with a line through it. It's a a patch that's half Israel's flag and half punisher logo with a thin border separating them.

That image is from this article which is about the symbols prevalence in the IDF (in spite THEIR uniform regulations) and the anti- Palestinian message it portrays.

I think the police viewing themselves as punishers (even in the most naive interpretation of the symbol) is really problematic. Police expressing a position on Israel is also not appropriate, I don't even like them wearing 'support our troops' badges and ribbons. But maybe it's better that they make their bad attitudes explicitly visible....