21.   Law enforcement officials have extensive powers to detain people when investigating attacks on the country, legal experts said Sunday.

22.   Material witness warrants are used to detain people believed to have crucial information about a case if prosecutors fear they might flee.

23.   Near this fence, Grupo Beta agents have detained six people who were seen walking with the suspected smuggler.

24.   NATO had pronounced the routes safe, and until Wednesday had played down reports that people were being detained.

25.   One could say, justifiably, that the Justice Department is attempting to codify a right to arrest and detain people in secret.

26.   Police Commissioner Bernard Kerik said five or six people had been detained and one person arrested at John F. Kennedy airport.

27.   Police still will be able to detain people who are drunk, but they will be released into the custody of the college or their parents without being arrested.

28.   President Ali Abdullah Saleh has taken steps to root out extremists, and his security forces have detained many people who received training at al-Qaida military camps.

29.   Remember the debate that has raged the past several years over whether law enforcement officers should rely on ethnic characteristics in stopping drivers or detaining people?

30.   Several hundred people were detained by police, who kicked, punched and pulled them by the hair as they herded the protesters onto buses.