The 32-year-old Karalahti was charged with being involved in smuggling nine pounds of amphetamines into the country. In a case that includes 19 people, he also allegedly provided $29,500 for smuggling operations, prosecutors said. He has denied the charges.
If found guilty, Karalahti could face up to six years in prison.
The drug ring is suspected of smuggling amphetamines and cocaine from Estonia to Finland last year.
On Nov. 6, Karalahti was taken off the ice for police questioning during his Karpat team's practice. Three days later, he was arrested on suspicion of committing a serious drug offense.