E/CN.4/1996/72/Add.4 page 12 53. Approximately 700 asylum-seekers and immigrants without papers are currently being held in 37 prisons and detention centres. An estimated 9,000 persons per year are held in detention. 11/ The criteria for the detention of asylum-seekers are: (a) That the individual asylum seeker might abscond from the address given, thereby breaking a condition of a grant of Temporary Admission (TA); (b) If there are any doubts over the identity of the asylum seeker or if he or she does not have valid travel documents; (c) If the application has been made after a leave to enter the country has expired (over-stayers); (d) (e) expelled. If the asylum seeker has entered the country illegally; If the right to asylum has been refused and the applicant must be Table 2 . Number of people detained a/ who had sought asylum, by nationality (No. of principal applicants) Nationality As at 10 May 1995 Afghanistan - 1 1 Albania 8 7 6 Algeria 65 63 74 6 9 11 19 16 20 Bulgaria - - 1 Cameroon 1 3 2 76 19 10 Colombia 8 6 8 Cyprus 7 16 19 Dominica 1 1 1 Ecuador 3 2 - Egypt 2 1 3 Eritrea 1 1 1 Estonia - 1 1 Ethiopia 1 3 5 Gambia 5 3 3 Georgia 5 1 - Angola Bangladesh China As at 13 January 1995 As at 18 November 1994