The reasons people become undocumented can be varied, and are often through no fault of their own. People who have lived in the UK for decades, people with families and friends, people just living their lives, stripped of their residence status overnight for the simplest of things.
Together with more than 80 other organisations, and with more than 145 signatories in total, we have written an open letter to the Home Secretary to implement policies which make it easier for people to secure a recognised status.
People do not choose to become undocumented, and, as we explain in the Guardian, being so increases their risks of being exploited.
Detentions and deportations of undocumented individuals are not the answer. They do not address the fundamental issues. Only increasing the routes to regularisation, and making them simpler, can do that.