Regarding the incident described in the OP.........
CRIMINAL BEHAVIOURViolent criminal behaviour, seems to be 'out of control',
in many of our towns, and in our suburbs, and in our cities.
.
Whether it is 'white collar' crime, or whether it is physically violent crime.
We all [i.e. reasonable people] should want to see accountability,
for what is 'lawless' or criminal behaviour.
And that widespread desire [in our society] [for accountability for criminal behaviour],
is a principle reason why we [society/our forefathers]
established a system of government,
where, we elect representatives to a central parliament,
in order that OUR, OUR, OUR, government, is able to establish laws,
......to bring accountability......to persons who CHOOSE to commit what are 'criminal acts' and lawless acts.
Q.Why is our 'Political Class' today,
UNABLE to deliver this circumstance ?
[....of a low crime rate, in our society]
Where serious >> criminal behaviour, <<
by any individual,
is 'brought to account', in accordance with the law of the land.
circumstance = = a fact or condition connected with or relevant to an event or action.