Drivers under the influence of marijuana are up to twice as likely to crash, according to a AAA report.

In a state that is gearing up for legalization, there’s been pushback from the beginning from groups like the Illinois Sheriff’s Association, who said there is no roadside testing available for use by law enforcement in Illinois to test if a driver has been high or even is high in that moment.

“It’s always going to be problematic until law enforcement and employers are willing to adopt a test that measures impairment versus presence because once they use it, it stays in their system for up to 28 days,” said attorney Larry Mishkin with Hoban Law Group.