46 AUAD v. BULGARIA JUDGMENT However, Mr Chahal’s deportation was blocked, throughout the entire period under consideration, by the fact that proceedings were being actively and diligently pursued with a view to determining whether it would be lawful and compatible with the Convention to proceed with his deportation (see Chahal, cited above, §§ 115-17, as well as, mutatis mutandis, Eid v. Italy (dec.), no. 53490/99, 22 January 2002; Gordyeyev, cited above; and Bogdanovski v. Italy, no. 72177/01, §§ 60-64, 14 December 2006). By contrast, in the present case the Supreme Administrative Court refused to give any consideration to the point whether the applicant would be at risk if returned to Lebanon (see paragraph 23 above). Moreover, under Bulgarian law the order for the applicant’s expulsion was immediately enforceable at any time, regardless of whether a legal challenge was pending against it (see paragraphs 31, 34, 35 and 37 above, as well as Raza, cited above, § 74). The delay in the present case can thus hardly be regarded as being due to the need to wait for the Supreme Administrative Court to determine the legal challenge brought by the applicant against the order for his expulsion. 135. In view of the foregoing, the Court concludes that the grounds for the applicant’s detention – action taken with a view to his deportation – did not remain valid for the whole period of his deprivation of liberty due to the authorities’ failure to conduct the proceedings with due diligence. There has therefore been a violation of Article 5 § 1 of the Convention. V. APPLICATION OF ARTICLE 46 OF THE CONVENTION 136. The Court finds it appropriate to consider the present case under Article 46 of the Convention, which provides, in so far as relevant: “1. The High Contracting Parties undertake to abide by the final judgment of the Court in any case to which they are parties. 2. The final judgment of the Court shall be transmitted to the Committee of Ministers, which shall supervise its execution. ...” 137. In the context of the execution of judgments in accordance with that provision, a judgment in which the Court finds a violation of the Convention or its Protocols imposes on the respondent State a legal obligation not just to pay those concerned the sums awarded by way of just satisfaction, but also to choose, subject to supervision by the Committee of Ministers, the general and/or, if appropriate, individual measures to be adopted in its domestic legal order. Furthermore, it follows from the Convention, and from Article 1 in particular, that in ratifying the Convention the Contracting States undertake to ensure that their domestic legislation is compatible with it (see Maestri v. Italy [GC], no. 39748/98, § 47, ECHR 2004-I, and, more recently, Paksas v. Lithuania [GC], no. 34932/04, § 119, 6 January 2011). The Contracting States’ duty in international law to comply with the requirements of the Convention may