Lawyers Converge on Guantanamo Bay.

WASHINGTON, May 29 - In the last few months, the small commercial air service to the naval base at Guantanamo Bay, Cuba, has been carrying people the military authorities had hoped would never be allowed there: American lawyers.

And they have been arriving in increasing numbers, providing more than a third of about 530 remaining detainees with representation in federal court. Despite considerable obstacles and expenses, other lawyers are lining up to challenge the government’s detention of people the military has called enemy combatants and possible terrorists.

A meeting earlier this month in New York City at the law firm Clifford Chance drew dozens of new volunteer lawyers who attended lectures from other lawyers who have been through the rigorous process of getting the government to allow them access to Guantanamo.