However, Sunday's detentions were the first since contractors lost their immunity under a joint U.S.-Iraqi agreement.
Removing their immunity would favour British firms, which are generally less twitchy about operating under other countries' laws.
However, their immunity to privatisation, enshrined in state laws, is a big obstacle.
And Congress has swiftly passed another law allowing the judge to question senators without a prior vote to lift their immunity from prosecution.
The Oxford University team was reportedly "dismayed" earlier this year when some of the former prostitutes appeared to lose their immunity and contracted HIV.
Politicians regularly use their immunity to block inquiries involving their allies.
Providing another potential stick for Pena Nieto, Congress stripped lawmakers and other public servants of their longstanding immunity from prosecution, leaving only the president with total legal protection.
Their perceived immunity from default is increasingly untenable.
Since the pertussis vaccine's protection can wear off with time, a booster shot is recommended for adolescents at their 11-year-old checkup visit, as well as for adults who care for young infants, in order to protect from whooping cough until the babies have their own immunity.
There is no international law that gives officials immunity inside their home countries.
And would you consider leaving any troops in Afghanistan beyond that date without an immunity agreement for their actions?
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So Democrats can block immunity, and their leader is opposed to it.
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When the two airlines announced their deal, they requested immunity from antitrust laws in America in order to co-operate closely on fares and so on.
Mr Bush recently waived restrictions on military aid to 21 countries, and curbs on economic aid to a further 14, despite their refusal to sign bilateral immunity deals.
The summary cites a number of people -- whose names are blacked out in the report -- as having offered statements through their attorneys and having sought immunity from prosecution.
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But five of the Law Lords in the second panel devote much of their judgments not to the immunity issue, the core of the case, but to an issue barely raised before.
As a result, their lawyers are threatening to challenge Minustah's immunity in the Haitian courts if the UN does not address their claims.
He discovered that infants given doses of an anti-malarial drug called Fansidar along with their regular childhood vaccinations often acquired immunity to malaria.
Instead, the teens were granted immunity to testify, and their accounts helped incriminate the defendants.
They conceded the U.S. doesn't abide by the international conventions but has its own laws granting limited immunity to figures such as their client who are in the U.S. on legitimate business for international organizations.
Legally, he can do this because convicts in Italy do not usually serve short prison sentences until all their appeals have been heard, and anyway he enjoys parliamentary immunity.
Innate immunity is the defence against infection that babies are born with, as opposed to adaptive immunity which is acquired as people develop antibodies through their exposure to disease-causing agents.
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American defense officials now have to assess how much damage Mr. Karzai's allegations will have on their plans, already threatened by discord over whether to grant immunity from prosecution to U.S. troops and by the Afghan leader's refusal to negotiate with the North Atlantic Treaty Organization.
But one Marine, who was granted immunity, said Wuterich shot the men as they had their hands up.
Worse, individual bondholders might pursue their claims in the courts, where Pakistan might try to invoke its sovereign immunity.
The Sabin vaccine actually helped boost immunity in communities beyond the individual because people shed the weakened virus in their feces.
That order granted private security contractors immunity from prosecution in Iraq but made them subject to the law of their "sending state".
Patrons can order a shot of vitamins A, B, C, D and E or a mixture of roots, herbs, fruits and mushrooms blended in blasts called "energy, " "immunity" and "skin, hair and nails" to add to their water.
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