It is illegal for visitors to bring a cell phone to a closed prison.
[5] In Turkey, there are three types of prisons: closed, semi-open (currently abolished), and open.
[6] There are closed prisons for adult men, adult women, children (Turkish: çocuk tutukluların ("child detainees"), ages between 12 and 18) and minors (Turkish: gençlik, ages 18–21).
[7] Per Article 8 of the Turkish prison law, closed penal institutions (Turkish: kapalı ceza infaz kurumları) are ones in which there are internal and external security guards, equipped with technical, mechanical, electronic or physical barriers against escape, room and corridor doors are generally kept closed.
Closed institutions for children and minors provide for education and training under adequate security measures against escape, including internal and external security guards.