LONDON (Reuters) – Britain’s High Court has quashed a legal challenge against the detention under anti-terrorism laws of the partner of Glenn Greenwald, the journalist who brought leaks from former U.S. spy agency contractor Edward Snowden to world attention.

David Miranda had appealed against his detention and nine-hour questioning under anti-terrorism legislation last August when he landed at London’s Heathrow Airport en route from Berlin to Rio De Janeiro, Brazil.

British authorities seized items from Miranda which they said included electronic media containing 58,000 documents from the U.S. National Security Agency, Snowden’s former employer, and from its British counterpart, Government Communications Headquarters (GCHQ).

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