Md. Code Ann., Corr. Servs. § 9-308

If a treaty between the United States and a foreign country provides for the transfer or exchange of convicted offenders to the country of which they are citizens or nationals, the Governor may authorize, on behalf of the State and subject to the terms of the treaty, the Commissioner of Correction to consent to the transfer or exchange of offenders and take any other action necessary to initiate the participation of the State in the treaty.