United Kingdom 
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We couldn’t find any streaming options in the Philippines, but Behind Bars is available in the United Kingdom and 3 other countries on Sky Go, Crime+ Investigation Play Amazon Channel, and 2 other services.
These are six of the toughest prisons in the world. Prisons so tough, even gang bosses and killers learn the meaning of fear. Across four continents, six different prisons, the series "Behind Bars - the World's Toughest Prisons", takes us beyond the gates, walls, barred windows and cells into an unknown world, a world we know exists, but a world nobody wants to think about.
