Term for people not in any way involved in a crime/incident

I'm looking for a word that refers to the people (general population) who were not involved in an incident. To be particular let's say the incident is a "crime".

That is, one you take away the perpetrators, the victims, the witnesses, lawyers, judges, cops, etc. you're left with the greater part of the population that has nothing to do with the incident or the surrounding proceedings.

Is there a term for this group?

Something similar to, but not quite "party", as in "party to the crime", as that wouldn't include the people who are part of the proceedings.

Solution 1:

nonparticipant

Solution 2:

If they were within the general area of the crime but otherwise uninvolved, the correct word is "bystanders".

Solution 3:

If you exclude so much from the applicable group, and when you consider bystanders being witnesses, then you might mean to be the group unaware of the whole event:

"Unawares".