Returning families with no right to be in the UK is one of the most difficult and sensitive aspects of our work and we are committed to treating everyone in our care with respect and humanity.
We will consider the recommendations in the HMCIP's report carefully and respond in due course.
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Guillier conceded a "severe defeat" defeat to his supporters as the result came in.
The outage struck Hartfield-Jackson Atlanta International Airport at around 1pm local time, stopping all outgoing flights.
It will be a chilly day for many parts with the highest temperatures, about 10 Celsius (50F) in the far northwest.