I live in a pretty decent area, but sometimes have to travel through much less decent areas (and I am also asking for a (female) friend who lives in a much less decent area). For this I would like some pepper spray or other non-lethal self defense 'weapon'.
First, we both live in Maryland (with regular trips to DC) are there any laws to take into account?
Second, there seems to be quite a bit of choice on the market....what kind of spray 'works'? i.e fog vs. stream, different brands, different canisters.