Case C-241/21: Judgment of the Court (Second Chamber) of 6 October 2022 (request for a preliminary ruling from the Riigikohus — Estonia) — I.L. v Politsei- ja Piirivalveamet (Reference for a preliminary ruling — Directive 2008/115/EC — Return of illegally staying third-country nationals — Article 15(1) — Detention — Grounds for detention — General criterion based on the risk that the effective enforcement of the removal would be compromised — Risk that the person concerned would commit a criminal offence — Consequences of the establishment of the offence and the imposition of a penalty — Complication of the removal process — Article 6 of the Charter of Fundamental Rights of the European Union — Restriction of the fundamental right to liberty — Requirement of a legal basis — Requirements of clarity, predictability and accessibility — Protection against arbitrariness)