“…In this context, the chapter answers 1458 For the drafting history, see e.g. Hruschka and Maiani (2016), 1574-1575Peek and Tsourdi (2016), 1412-1413, 1419, 1423Mananashvili (2016), 734-739. 1459 See e.g. Wilsher (2011), 191-192;Velluti (2014) the following questions: when immigration detention is considered lawful (Title II), whether it must be proportional and necessary (Title III), when it is permissible (Title IV), for how long it is allowed (Title V), where it should be effected (Title VI) and what procedural safeguards shall be granted to detained foreigners (Title VII).…”