SHAWNEE COUNTY — Law enforcement authorities are investigating a suspect on drug charges after an I-70 traffic stop.

Just after 11:30a.m. Wednesday, deputies stopped a vehicle near Urish Road for a license plate registration violation, according to   Sergeant Todd Stallbaumerl.

The suspect identified as 29-year-old Robert C. Rodriguez, refused to follow a deputy’s instructions. Another officer tased Rodriguez.

He was taken to a local hospital for a medical examination before being booked for possession of marijuana with the intent to sell and possession of drug paraphernalia. Deputies reported finding 11.5 pounds of marijuana worth approximately $20,000 inside the vehicle

Rodriguez is being held without bond.