The Ministry of Defence operated "flagrantly" outside the laws on detention, a spokesman from lawyers Leigh Day said.
The law firm, who represent Afghan farmer Serdar Mohammed in his damages claim for assault, false imprisonment and human rights breaches against the Government, made the comment after the High Court ruled UK forces' detention policy in Afghanistan was unlawful.
When we send our troops abroad it is the Ministry of Defence's job to ensure that the mechanisms are put in place to ensure that they operate within the rule of law.
As the court has made clear, the MoD fully understood the parameters of the law regarding detention and yet they decided to operate flagrantly outside those rules.
More top news
The text-to-register service allows mobile users to add their number to the Telephone Preference Service 'do not call' database.
A consumer report found that a number of once-a-day sunscreens decreased in protection by an average of 74% after six to eight hours.
It will be mainly dry across the UK, but parts of Wales and England may experience thundery showers.