Questão jurídica principal
Whether the appeal remained admissible after the appellant's deportation and release from custody.
Decisão extraída
The case was not moot because the appellant raised arguable Convention-based complaints and retained a declaratory interest in review of the completed detention.
Fundamentação extraída
When an EMRK violation is plausibly alleged and properly argued, release or deportation does not necessarily extinguish the need for a ruling on the lawfulness of the detention.