JVA stands for Justizvollzugsanstalt – the official word for a prison in Germany.
JVAs can be found throughout Germany, although some are specialised in the type of prisoner. An interesting example of this is in Singen, where there is a prison for older members of the community.
To hear a simple explanation and a short discussion in German, listen to the podcast:
(Press the “play” button to listen to the podcast)