3. The Committee is concerned that the Islamic Republic of Iran may impose the death penalty or other corporal punishments on persons convicted of crimes in that country. The Treaty does allow a Requested State to refuse an extradition request if it 'has substantial grounds to believe that the probable sentence of the offence in the Requesting State is qualitatively different from the probable sentence given on the same offence in the courts of the Requested State' and may also refuse extradition unless the Requesting State undertakes or gives sufficient assurance that the person sought will not be detained without trial, tortured or treated or punished in a cruel, inhuman or degrading way. Although these provisions appear adequate, the Committee would have preferred that the Treaty explicitly exclude the possibility of extradition where the death penalty is a competent sentence unless the necessary assurances are made.