Prisons are the structures used for incarcerated inmates and are often overcrowded and understaffed. This often leads to inhumane conditions and increased violence. Smart building technologies can help to alleviate these problems to some extent and improve communication between staff and prisoners. https://www.roneverhart.com/Polly-Pocket-Polly-Lila-Tropicool-Pineapple-Wearable-Purse-Compact/