SALT LAKE CITY (AP) — The Mormon church is doubling down its opposition to Utah’s medical marijuana ballot initiative.

The Church of Jesus Christ of Latter-day Saints released a statement and a seven-page legal memorandum Friday outlining the “serious adverse consequences” that could follow if the measure were approved.

The memorandum was compiled by Salt Lake City law firm Kirton McConkie. It warns that the initiative would make it hard for police to distinguish between legal and illegal drug possession and could allow a large number of Utah residents — including children and people with drug convictions— to obtain medical cannabis cards.

Roughly two-thirds of Utah residents belong to the church.

Supporters of the initiative say it’s narrowly tailored and that the drug will help people living with chronic conditions. The proposal would not allow for smoking of marijuana.