Here is a video of men being publicly whipped in the streets apparently for selling goods while prayer services were taking place. This is by the Al Qaeda members who have established sharia law where they have defeated the Assad regime.
For an inside look at this in its more nascent stage, please watch this video from the fall of 2013 by two French journalists that managed to document both openly and somewhat clandestinely the way this was set up. (Sorry, the original makers of the video would not allow embedding. But the video is there with our translation.)