A traffic stop Friday night in Brownwood led to seizure of a pound of marijuana, 28 grams of crystal “ice” methamphetamine and 3 grams of cocaine, police said.

Michael Alva, 38, of Giddings, was arrested after the sheriff’s department’s drug dog alerted on the 2005 Chevrolet 2500 pickup Alva was driving, police said. Alva was booked onto the Brown County Jail on two charges of manufacture and delivery of a controlled substance, and one charge of possession of marijuana, jail records state.

Alva, a former Brownwood resident, is free on $30,000 in bonds, jail records state.

Police said they believe the drugs were brought from Dallas to Brownwood to be sold. Police also said the bust was the largest in Brownwood in terms of the amounts in some time.

“It was a heads-up arrest — guys doing their job, the way they do it every day,” police Lt. John Harper said.

Officer Danny Hutchins stopped the pickup at 9:27 p.m. on Belle Plain because its rear license plate was not illuminated, Hutchins’ report states.

Alva told Hutchins he was coming to Brownwood from Houston to visit his girlfriend. He did not know her last name.

Hutchins asked for consent to search the pickup, and Alva told the officer he could look inside through the open door. Alva began moving items around and said Hutchins would have to take his word for it that there was nothing illegal inside.

Hutchins requested the sheriff’s department’s K-9 unit, and deputy James Stroope arrived with the drug dog, Izzy. After she alerted on the pickup, Hutchins and deputy Carlyle Gover found narcotics in the vehicle and on Alva, Hutchins’ report states.

Police also seized $461 in cash.

“That’s another sure sign of the cooperation between agencies (using) our combined resources to facilitate an arrest of this nature,” Harper said.

Narcotics detective Bruce Spruill said it was unusual to find significant amounts of three types of drugs in the same place.

“It’s a very significant arrest,” Spruill said.