290. Prevention of unauthorised immigration or facilitating deportation or extradition.

A person may be deprived of his liberty1 if he is lawfully2 arrested or detained in order to prevent his effecting an unauthorised entry into the country3 or if action is being taken against him with a view to deportation or extradition4. Detention of a person who wishes to enter the jurisdiction but does not yet have authorisation can fall within this exception: it is not necessary for a state to show that the person is seeking to evade entry controls5. In order to avoid arbitrariness6, a deprivation of liberty within this exception must be carried out in good