The police have the following powers to deal with terrorism: (1) they may arrest suspected terrorists and detain them for 48 hours on their own authority; (2) they may exclude persons involved in terrorism from the country; and (3) they may conduct security checks on travelers entering or leaving the country. Statistics indicate that 29 people were detained in Great Britain under the Prevention of Terrorism Act during the second quarter of 1991. Of the 29 individuals, 22 detentions were in connection with Northern Irish terrorism, and 7 were associated with international terrorism. Two of those detained, or 7 percent of the total, were either charged with an offense, deported, removed, or excluded. Of the 27 detentions not leading to a charge with an offense, deportation, removal, or exclusion, 24 were for a period under 48 hours. Forty-four persons were examined for more than 1 hour, but were not detained. 7 tables