A Red Deer man has been sentenced to two years' probation and 140 hours of community service after being convicted of three counts of sexual assault and one count of sexual interference.

The man — who was 17 at the time and cannot be named under the Youth Criminal Justice Act — was involved with Scouts Canada between 2007 and 2012 and was also involved with Cadets Canada between 2011 and 2015.

The assaults happened while on Scouts Canada and Cadets Canada camps as well as during an event at Rexall Place in Edmonton and at the man's home.

Crown prosecutor Dane Wolf said he was happy with the sentence.

"It's what I expected," he said.

"He was convicted of some serious allegations and a longer probation I thought was appropriate to address the need to denounce and deter his behaviour for others and for him as well," Wolf said.

"I think a bit of counselling will be needed... and just more monitoring with a probation officer to help him out basically," he added.

The man must complete the community service by July 2, 2017.

He must also provide a DNA sample to police and is prohibited from having contact with anyone under age 16 while on probation without an adult approved by a probation officer being present.

He also cannot have any contact with his victims.

With files from Andrew Brown