This suspicion solidified into disturbing data a year later on the other side of the country. When a Seattle ordinance banning plastic bags took effect on July 2012, 21.1 percent of surveyed Seattle business owners said that the plastic bag ban led to an increase in shoplifting problems. Seattle’s Lake City Grocery Outlet, for instance, had thousands of dollars worth of goods stolen that year.
via Bag ban leads to nationwide increase in shoplifting rates | The Daily Caller. Not happening in Boulder.