SAN FRANCISCO (AP) — The California Supreme Court is scheduled to hear arguments Tuesday on whether local governments can ban retail pot dispensaries within their borders, a question that could lead to the medical marijuana industry’s expansion or further contraction depending on the outcome.

About 200 cities and counties already have outlawed storefront pot shops, according to the pro-dispensary group Americans for Safe Access, but this will be the first time the state high court considers if such all-out prohibitions are legal or barred by California’s medical marijuana laws.