implementation of these restrictions in practice is only allowed under the condition of foreseeability of application of legal norms established by such restrictions” (paragraph 3 of subsection 3.1 of section 3 of the reasoning). This conclusion is compatible with the ECHR case law where the Court reiterated that where deprivation of liberty is concerned it is particularly important that the general principle of legal certainty be satisfied (Baranowski v. Poland, 28 March 2000, Novik v. Ukraine, 18 December 2008)50. The legislation does not identify the moment of onset or completion of administrative detention The Code of Ukraine on Administrative Offences clearly defines the terms of administrative detention, yet measuring its length is practically impossible. Any time period, particularly one defined by legislation, should have clearly defined limits: the moment of onset (beginning of administrative detention) and the moment of completion of administrative detention. Before the Constitutional Court’s decision51, length of administrative detention was defined by article 263§5 of the Code on Administrative Offences and calculated from the moment of delivering the offender for drawing up a report, and if the person was intoxicated – from the moment of sobriety. However, the Constitutional Court of Ukraine decided3 that this provision was unconstitutional, and since then there is no legal definition of the moment when administrative detention begins in Ukrainian legislation. The time limits for bringing of the person detained for administrative offence are not defined. For the purposes of drawing up a report on administrative offense in cases where it is not possible to do so at the location of offence, and if such report is mandatory, the offender may be brought to the competent authority, in particular, to an internal affairs body52. The offender shall be brought within the shortest possible time53. However, the law does not define how the period of bringing the person should be identified along with its maximum length. The procedure for serving the administrative arrest in special premises for persons under administrative arrest is not regulated 50 Novik v. Ukraine, ECHR, appl. No. 48068/06, http://zakon4.rada.gov.ua/laws/show/974_442 Constitutional Court of Ukraine, decision № 10-рп/2011 dated 11.10.2011, http://zakon2.rada.gov.ua/laws/show/v010p710-11/print1382533618117584 52 Administrative Code of Ukraine, Article 259§1. 53 Administrative Code of Ukraine, Article 259§8. 51 99 case № 1-28/2011