BULGARIA - PENAL PROCEDURE CODE
Part two. EVIDENCING
Chapter thirty six. PROCEDURES IN CONNECTION WITH INTERNATIONAL COOPERATION ON PENAL CASES
Section II. Recognition and Execution of a Sentence of a Foreign Court
Art. 642. 6. the sentence does not contradict the basic principles of the Bulgarian penal and penal procedure law.
3. Where execution of a particular measure of assistance detailed in a request presented under paragraph 1, is prohibited in the requested State on the basis of an existing fundamental legal principle of general application, the requested State shall promptly consult with the Court to try to resolve the matter. In the consultations, consideration should be given to whether the assistance can be rendered in another manner or subject to conditions. If after consultations the matter cannot be resolved, the Court shall modify the request as necessary.