Under the law, police would be able to detain an individual based merely on the suspicion that he or she entered the country illegally.

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The Tajik government said it moved its forces into Khorog, which sits on the Afghan border, in order to detain Mr. Ayombekov.

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Scotland Yard has told its officers that bad language on its own is not a good enough reason to detain someone.

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But they can't just expect parliament to sign a blank cheque on these things, to give governments the power to detain people for months without charge, does require specific evidence that that is necessary, alongside a whole range of other measures, that certainly are necessary, in order to combat terrorism.

BBC: William Hague

And I think that when it comes to our men and women in uniform who might be carrying out these missions, the instructions are not going to be based on whether or not the lawyers can sort out how we detain them or how we prosecute them.

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Iraqi forces will also be on the district's streets, conducting searches and raids to detain wanted individuals, according to al-Obeidi, and he warned that according to the agreement, the government will punish the security forces if they violate residents' rights in the process.

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On Wednesday, soldiers patrolling in Rio Grande came under fire when they tried to detain armed suspects, officials said.

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Interpol on Tuesday issued a "Red Notice" - a request for local police to detain a wanted person with a view to their extradition.

BBC: Iraq's Tariq al-Hashemi faces Interpol arrest notice

Depending on the timing and situation it may in fact be totally necessary to send men under your command to detain another soldier in order to ensure their safety.

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