In most TDFs, daylight is limited due to by small size of windows. The window sizes were found to vary from 10 cm x 45 cm up to 1.0 m x 1.20 m. The table below shows the ratio of the area of cells, and the number and the size of windows in some of the IAB TDFs. Number and Sizes of Windows in Some of the TDF Cells. Cell Area, square meters Number of Cell Widows Window Size, cm Kara-Kul City IABTDF 5.4 1 25 х 25 Aksy District IAB TDF 7.5 18.0 13.5 20.7 18.35 18.5 1 1 1 1 1 1 20 х 35 20 х30 35 х 45 10 х 45 30 х 39 32 х 45 KR IAB TDF Tokmok City IAB TDF Balykchi City IAB TDF Tyup District IAB TDF Table 3. In 18 (38%) IAB TDFs, windows have double metal bars which makes penetration of daylight and air almost impossible. For example, the Karasu, Kemin, Jeti-Oguz, Tyup, Batken, Leilek, Alai, Bazarkorgon, and Kara Kuldzha District IAB TDFs, and the Kyzyl-Kiya, Karakol, Sulukta City IAB TDFs, etc. In the cells of the Jalal Abad City IAB TDFs, a polyethylene film is stretched instead of glass in the window openings, thereby making access of the air impossible. In the Karabuura District IAB TDF, metal shutters, which do not let the daylight in, are embedded instead of the glass in the window openings. There is no natural daylight in the Balykchi IAB TDF cells, for the only available window in the cell is welded from the outside by a metal sheet, 2 mm thick, with only 3 holes with a diameter of 3.5 cm. The same was discovered in the Naryn City AIB TDF cells, the IssykKul, Djail, and Uzgen District IAB TDF cells. Deprivation of prisoners of natural daylight and fresh air which are basic elements of life and which every detainee has the right to use, even for the purpose of reducing the risk of escape, is deemed cruel treatment by the European Committee for the Prevention of Torture and Inhuman or Degrading Treatment or Punishment (CPT)94 and the European Court of Human Rights under the case of Labzov v. Russian Federation.95 Good natural lighting allowing prisoners to read and write in the daylight was noted by the observers in the At-Bashy and Ton District IAB TDFs, with the plastic windows installed in the Ton District IAB TDF. 94 Window in TDF. General Report of the European Committee for the Prevention of Torture and Cruel, Inhuman Treatment or Punishment, number 11. CPT / Inf (2001) 16. Par.30 95 The case of Labzov v. Russian Federation. Complaint No 62208/00. Strasbourg, 16 June 2005. 39