A spokeswoman for the Department for Work and Pensions said: "We are delighted, although not surprised, that the judge agrees our schemes are not forced labour.
"Comparing our initiatives to slave labour is not only ridiculous but insulting to people around the world facing real oppression.
"Thousands of young people across the country are taking part in our schemes and gaining the vital skills and experience needed to help them enter the world of work - it is making a real difference to people's lives.
"Those who oppose this process are actually opposed to hard work and they are harming the life chances of unemployed young people who are trying to get on."
More top news
A poll of Britain's largest trade union, seen by ITV News, indicates more than half of those surveyed think the Labour leader should quit.
Party rules state the new Tory leader will be announced on 9 September, but the way things are going it could all happen much sooner.
Contrary to Michael Gove's belief, people do need experts, now more than ever as we work out what leaving the EU actually means.