Surveillance and tracking of a person as special means of intelligence can be used according to Article 21 of the Bulgarian Law on Special Inrelligence Means for 2 months with opportunity for prolongation with 4 months - up to totally 6 months.
Surveillance and tracking of a person can be applied for duration of 2 years with possibility of prolongation with 1 year - up to totally 3 years, to activities related to the protection of national security in cases of prevention of serious intentional crimes under Chapter One of the Special Part of the Bulgarian Criminal Code i.e. treason, terrorism etc.
No later than 30 days from the receipt of the EIO the competent authority has to take a decision for its recognition and execution. This term may be extended by not more than 30 days after indicating the reasons for the delay and after consultations between the competent authority and the issuing body.
The competent authority for the execution of the EIO shall carry out actions for the investigation and other judicial investigation measures within no later than 90 days from the date of its recognition.
When it is not possible to observe the above terms, the competent authority shall immediately notify the issuing body of the reasons for the delay and after conducting consultations the necessary additional time for execution of an investigation action and other judicial investigation measures shall be determined.
When the issuing body has indicated in the EIO that due to the determined procedural terms, the gravity of the crime, or other especially urgent circumstances a shorter term is necessary or that investigative and other judicial investigation measures must be carried out on a specific date, the competent authority for the execution of the EIO shall comply with this requirement as far as possible. When it is not possible to comply with the term or the specific date, the competent authority shall immediately notify the issuing body of the reasons and after conducting consultations the necessary additional time for implementation of activities under investigation and other judicial investigation measures shall be determined.
In case of a MLA request no specific deadlines are envisaged. The practice necessitated, when the requesting state did not set a specific term, the requests for legal assistance are to be fulfilled as soon as possible, which usually takes between two and four months according to the factual and legal complexity of the particular request.