To date, more than eleven-thousand Oregonians have medical marijuana cards issued by their doctors. The card allows them to grow the marijuana themselves, or else designate a caregiver to grow it for them.

But the law as written is full of ambiguities.

And a bill passed by the 2005 Legislature attempts to make it easier for police, growers and patients to know what's legal. The new law, which takes effect in January, specifies limits on how many plants a patient can own and stricter requirements for registering a grow site.

Lawmakers also approved a hefty increase in the amount of marijuana a registered patient or caregiver can possess.

(Copyright 2005 by The Associated Press. All Rights Reserved.)