MONITORING PLACES OF DETENTION : A PRACTICAL GUIDE FOR NGOS 127 population, such as learning the language, or learning to read and write. Reference points ■ What type of training is on offer? ■ Is the choice limited by the authorities? ■ Is the choice compatible with the goal of reinsertion of the detainees? ■ Is the teaching or training wholly taken care of by the authorities? ■ Under what conditions do detainees have access to the library? ■ Does the library contain works in the different languages spoken by the detainees? 4