In this case I suspect that any rights he had to be alone with, or perhaps even see the child have been suspended until a full hearing. His name will be on a border control watch list so if he does try it again he won't get far. And he is hardly likely to abduct anyone else in the meantime. Given all that you'd have to ask what purpose would be served by pre-trial custody. The courts recognise the emotional distress suffered by all sides in family breakdowns and typically do their best not to compound it; offenders may well deserve prison but wherever possible that should be determined at trial.