North Liberty police arrested two Colorado residents after allegedly finding marijuana in their vehicle during a traffic stop.

A man and woman from Centennial, Colo., were charged Aug. 4 with possession of marijuana with intent to deliver and failure to affix a tax stamp to a taxable substance after they were stopped on I-80 by North Liberty police.

Erin Rogman and Charles Stockstill, both 28, were reportedly driving on I-80 near Tiffin when an officer pulled them over for not displaying registration.

According to a complaint, Stockstill — who was driving the vehicle — denied the officer consent to search the vehicle. Rogman, who was the passenger, allegedly admitted to there being a small amount of marijuana inside the vehicle.

A K-9 unit was deployed and gave an "alert" signal to the vehicle, and a search was conducted, the complaint said. The complaint said police found nearly two pounds of marijuana in the rear of the vehicle.

Rogman and Stockstill allegedly admitted to possessing the marijuana and transporting it to Chicago.

— by Matt Starns