A Billings man will spend 14 years in federal prison for trafficking the hallucinogen LSD.

Chief U.S. District Judge Richard Cebull Wednesday sentenced Robert Hauge, 28, who pleaded guilty to possessing at least 10 grams of LSD for distribution. The judge also imposed 10 years of supervised release. Hauge faced at least 10 years in prison.

Hauge got indicted after employees at a mailing business grew suspicous about his behavior. Employees of PostNet, 2912 Grand Ave., notified state and federal law enforcement agencies in October 2007 that Hauge visited the business almost daily in the two previous months to use the store's public computer and to mail packages to the Netherlands and other locations in the United States. He would minimize the screen and put his face close to it when he used the com-puter.

When Hauge left the store, employees checked the computer's Internet history and saw Web sites related to LSD, Ecstasy, pill reports and the making of identification cards. At one point, Hauge brought in four packages to be mailed. Investigators had a drug dog check eight packages, and the dog responded to Hauge's four packages.

After obtaining a search warrant, investigators opened the packages and found $6,400 in a package to be sent to Amsterdam and LSD and Ecstasy tablets in the three other packages.

A search of Hauge's home turned up 2,300 doses of LSD and 1,600 Ecstasy tablets. Hague told officers he had re-ceived the drugs from a source in Amsterdam for about a year.