KUSA – Law enforcement authorities in states bordering Colorado say legal marijuana in the Centennial State is starting to cause problems for them.

Sidney, Nebraska Police Chief B.J. Wilkinson says his officers have had to make more marijuana arrests this year than in all of 2013.

"It's a significant impact on the entire judicial system," he said. "Guess who pays for that? You and I, the taxpayers, do."

It's a concern that isn't limited to Nebraska.

The head of the Drug Enforcement Administration told Congress marijuana seizures had shot up 61 percent in Wyoming and Kansas.

Police insist they're not profiling drivers, but marijuana advocates disagree.

"I have many clients tell me that the first thing they get asked when they get pulled over in Kansas or Nebraska, with Colorado plates, is 'where's the marijuana?'" Defense Attorney Sean McAllister said. "…that's a problem."

The owner of a Sedgwick, Colorado marijuana shop has posted signs to warn their customers that taking their purchases out of the state is against the law.

He tells out-of-state customers to make his shop their first stop in Colorado – not their last.

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