A charity has been exposed circulating guides teaching migrants how to avoid being deported.

Under current Government website guidelines, “welfare services” must give migrants held in removal centres a “notebook” created by Bail for Immigration (BiD).

BiD has received more than £400,000 in Comic Relief donations and describes itself as “a national charity that provides legal advice and representation to individuals held under immigration powers to secure their release from detention”.

It also gives “legal advice and representation to detainees facing deportation”.

Documents first uncovered by The Telegraph revealed that the charity gives migrants detailed methods and “template” letters on how to appeal deportation.

In August, BiD, which also benefits from charitable tax relief, published “a legal guide for people in detention facing removal to France”.

Among other advice within the guide was different sample letters to send depending on how long a migrant has been in the UK.

The template included reasons which could give an extension on the deportation date.

These were:

• “I have previously suffered torture or inhuman treatment”;
• “I have been trafficked to the UK”;
• “I have mental health problems”;
• “I have physical health problems”;
• “I have family in the UK”.

In the past, BiD has hailed how it successfully fought the Tories’ Rwanda plan.

Elsewhere, its website explains how its free legal advice has “secured bail for every client – many of whom have since been granted asylum”.

But its most recent guidebook outlines how migrants can best negotiate Labour’s “one-in, one-out” deal with France.

“The UK-France Agreement sets very specific timeframes,” it says. “You can ask the Home Office for information on what steps they have taken and when.”

It continues: “If they are not acting within these timeframes or cannot provide evidence that they have done so, you can request to be released from detention.”

Another paper, named “How to Get Out of Detention; The Self-Help Guide for Detainees”, features a introduction written by a migrant called “Dennis”, who served a 15-month prison sentence.

“Dennis” encourages fellow migrants to “try as many times as necessary” to appeal to the courts to get bail.

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But her shadow counterpart Chris Philp said: “It’s a complete farce that this charity is publishing a ‘how-to guide’ for illegal immigrants to make potentially fraudulent claims to avoid removal to France.

“No wonder the Government’s latest gimmick has already collapsed into chaos.”

While former Tory Chancellor Nadhim Zahawi said: “Taking things to a whole new level of self harm… Prediction: No one will be held accountable for this shambles.”

The “one-in, one-out” deal was supposed to see migrants on board flights departing the UK from Monday.

However, no deportations have taken place yet as migrants continue to lodge “human rights” challenges.

Home Secretary Shabana Mahmood has accused migrants of “making a mockery” of British laws and has promised to oppose such last-minute appeals.

In a blow to the Tories’ attacks, Home Office sources said any leaflets providing BiD’s contact details were given out under the Conservative Government, and insisted that any such agreement with the charity had ended.

The Home Office said it “does not provide any leaflets relating to this charity to individuals in Immigration Removal Centres.”

A spokesman for BiD, which is independent of the Home Office, rejected claims the charity helps people “beat the system” and said: “BiD provides legal advice to ensure access to justice in line with the UK’s legal frameworks and relevant regulation.”

A spokesman for Comic Relief said: “Comic Relief does not currently fund Bail for Immigration Detainees.

“Between May 2016 to August 2023 Comic Relief funded Bail for Immigration Detainees with a grant totalling £420,000.

“The grant was used to support Bail for Immigration Detainees’ case work and outreach.

“There has been no further funding since August 2023.”