It was the awesome ICO which help the prison administrator to know the money transaction in their prison.It purely based on the US prison.The people from other country may have a doubt ,how the prisoners use smartphone.Now the prisoners in U.S using the tablet.

Check this link.

https://edition.cnn.com/2018/02/01/us/new-york-inmates-tablet-trnd/index.html

This cellblock ICO helps the prisoners to get knowledge about crypto currency and how to get profit from it.