BULGARIA - PENAL PROCEDURE CODE
Part one. GENERAL RULES
Chapter seven. ACCUSED
Section II. Restraining Measure and Other Measures of Procedural Compulsion
Art. 56. (1) To the accused a restraining measure may be taken in case of general nature, where from the evidence on the case a reasoned assumption that he/she has committed the crime and a ground under Art. 57 appear.
(2) Where the accusation is brought under the conditions of Art. 269, Para 3, items 2 and 3, a restraining measure shall be taken after the inquiry of the accused.
(3) At determination of the restraining measures, the degree of social danger of the crime, the evidence against the accused, the health status, family status, the profession, the age and other data about the accused shall be taken in view.
Art. 57. The restraining measures shall be taken with the purpose to stop the accused to abscond, to commit a crime or to foil the execution of the entered in force sentence.
Provisional arrest
Provisional arrest for national proceedings
EDIT.