Members of a group trying to legalize medical marijuana in Wyoming have set up a political action committee and will buy advertising in an effort to get enough signatures to place the issue on the ballot. 

The former director of the National Organization for the Reform of Medical Marijuana stepped down last week and spokeswoman Amber Sparks said the group is trying to move forward. They need to collect about 20 thousand signatures of registered voters by February, but Sparks says she remains optimistic. But they do need to overcome negative attitudes about marijuana.

Now that Colorado has voted to legalize the regulated sale of marijuana, some law enforcement officers along Wyoming’s southern border are concerned about what that could mean for the Cowboy State.

Medical marijuana is already legal in Colorado. Stores selling pot for recreational purposes will be allowed to open in 2014. The possession of marijuana in any amount is illegal in Wyoming.

Cheyenne Police Chief Brian Kozak says his department has done some preparation for the change.