FAIRBANKS - Authorities say a Fairbanks-based Alaska state trooper has been charged with forging prescriptions for narcotic pain medications.

Troopers allege Scott Ide forged prescriptions four times this year and tried a fifth time. Troopers say Ide told investigators the medicine helped an injury he suffered while serving in the Army.

Troopers say a doctor alerted authorities to the alleged forgeries.

Ide has been charged with one felony count of having "intent to defraud, made or caused a false entry in the business records of an enterprise."