Please ask your MP to support this Clause, which creates a maximum time limit of 28 days on immigration detention, to replace the current situation where people are detained indefinitely:
Consideration of Bill (Report Stage): 26 June 2020 5 Immigration and Social Security Co-ordination (EU Withdrawal) Bill
To move the following Clause— “Time limit on immigration detention
(1) For the purpose of this section, a person (“P”) is defined as—
(a) any person who, immediately before the commencement of Schedule 1, was—
(i) residing in the United Kingdom in accordance with the Immigration (European Economic Area) Regulations 2016;
(ii) residing in the United Kingdom in accordance with a right conferred by or under any of the other instruments which is repealed by Schedule 1; or , continued
(iii) otherwise residing in the United Kingdom in accordance with any right derived from European Union law which continues, by virtue of section 4 of the EU Withdrawal Act 2018, to be recognised and available in domestic law after exit day;
(b) and any other person. (2) The Secretary of State may not detain any person (“P”) as defined in subsection (1) under a relevant detention power for a period of more than 28 days from the relevant time.
https://publications.parliament.uk/pa/bills/cbill/58-01/0104/amend/immigration_rm_rep_0626.pdf
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JRS UK have produced a new report on the impact of immigration detention in the UK.
For anyone who is interested you can find the report here: https://www.jrsuk.net/detentionreport/
There was also a piece in the Observer which you can find here: https://www.theguardian.com/uk-news/2020/jun/27/tory-rebels-call-for-28-day-limit-on-detention-of-migrants