Eighteen-year-old Karen Henderson's was arrested in February during a stopover at Moscow airport after travelling from Cuba. Her claim that she had bought her suitcase at Havana airport without knowing it contained drugs was dismissed.
In a statement before judgment was reached, Henderson said: "I believe in justice. I really hope that Your Honour has taken all the facts into account. I told you the truth. I hope you also believe in justice." She is expected to appeal.