 1.3.4. 1.3.5. 1.4. It is unacceptable, for example, when there are electrical wires that stick out of the walls and have no insulation. Separate rooms shall be designated for investigative actions and for medical assistance or the granting of visits. The pay phones installed for contact with the outside world shall be in proper working condition. Instructions on the use of the pay phone and the hotline number of the Human Rights Defender shall be posted next to them. The Conditions of Detention Cell Conditions 1.4.1. The cells designated for holding arrested persons shall need to have sufficient penetration of natural light, and in some cases, when natural light penetration is not sufficient, additional artificial lighting shall be secured. 1.4.2. In the cells in police stations, the electrical lighting shall be switched off during the night hours, except when, for example, there is a need for special surveillance of the person deprived of liberty due to such person’s conduct, which cannot be performed in the absence of lighting in the cell during the night hours. 1.4.3. There shall be call buttons in the cells for holding arrested persons. 1.4.4. The cells shall contain a table and chairs equal to the number of persons in the cell for the purpose of making the food intake convenient. 1.4.5. The cells shall have proper ventilation. 1.4.6. The PHAP cells shall be equipped with radio receivers. 13