I think the argument is current DUID laws don't give much guidance to a jury. By setting a permissible amount for a driver, your lawyer can tell a jury that while you may have been under the influence of marijuana, you tested at only 1ng, well under the 5ng limit. In the status quo, if you're high... you're high.

Once again, I want to let everyone know that ACT4CO is trying to do the actual research on ng levels in Colorado. Lot's of people volunteered at the hearing, don't know if they touched base with ACT4 though.