02/28/2012 04:47 pm ET

Postal Office Says It's Dealing With An Increase In Marijuana-Laced Mail

Suddenly it's a marathon keeping up with Colorado's marijuana news.

Colorado's post officials say they feel they are seeing an uptick in attempts to mail marijuana out of state, according to a report by the Denver Post.

The news was published the day after the Secretary of State's Office announced that Colorado will be the second state to put a recreational pot question on the November ballot, and the day after the U.S. Attorney's deadline that 23 local medical marijuana dispensaries move or be shut down. It also comes the day after a THC driving limits bill passed a Senate committee in a 4-1 vote.

While postal inspectors reported a nationwide drop in seizures since last June, they told the Denver Post that Colorado has had to create a separate process for packages carrying only small amounts of marijuana.

Just last month the U.S. Postal Service was credited for their involvement in helping to track "Operation Sweet Leaf," a grow operation that was suspected of growing the plants in Colorado and shipping them to as many as eight other states via the mail.

Under state and federal laws, it is illegal to circulate marijuana out of state boundaries.

Denver postal officials say they have no numbers of local seizures available.