But they are not a nuisance to the community or police, quite the opposite in fact.
They are members of the Mosgiel-Taieri Community Patrol and act as extra eyes and ears for the area's police.
Since the group's launch this time last year, it has racked up 1185 patrol hours and has been involved in a wide range of incidents.
Its aim is to make the community a safer place to live, and president Allister Green believes it is succeeding.
The group is made up of 47 members with an even mix of male and female and a wide range of ages, though most members are aged between 50 and 60.
People from all walks of life have become part of the group, with retirees, teachers and business owners all putting their hands up to work on a six-week roster.
The patrol operates on Friday and Saturday nights from 10pm to about 2am, on Saturdays between 1pm and 5pm, and also when the police request its assistance to help with events, such as Melbourne Cup Day at Wingatui.
Patrols focus on schools, public places, playgrounds, parks and both commercial and residential areas from Brighton to Allanton.
"Most of the nights are quiet, but you never know what you can get," Mr Green said.
From drink-drivers who have had accidents, to low-speed pursuits and searching for missing people, through to observing vehicles which have been used to commit crime and talking to witnesses to an assault, the patrol has done it all.
"There are definitely times when the heart starts pounding and you are in it for real."
While its effect was not measurable, there were "people out in society causing a bit of havoc" and Mr Green hoped the group had curbed it.
"People have said to us they feel a bit more comfortable knowing we are out and about."
However, as the group had no more power than the average citizen, they tended to be "stand-offish" and preferred to report incidents to police for them to take care of.
"If nothing else, we are just a deterrent.
"We just want to make sure we are providing training and an environment that's as safe as possible to work in."
Mosgiel Community Constable Jacqui Ballam said, in a recent award application, that Mosgiel police often worked alone and felt reassured the patrol was actively monitoring the police radio and offering backup and support if needed.
