It quite unfortunate that prisoners now adays doesn't learn the hard way or even show a little sign of repentance even after spending long term jail in prison, rather they even got worst than before, prison is a place that is surpose to be a way of punishment for those that commited crime but it seems it has become an avenue to promote more crime and giving them more gods in committing more crimes, however gambling addiction has proven to be unlimited despite the place, but it will be better if the authorities could put down possible measures that can be monitoring the affairs of the immate to avoid such situations.
I don't suggest just monitoring these inmates where gambling is involved, I recommend making gambling being prohibited entirely in prison. The authorities in charge of the prisons should ensure that activities capable of influencing the inmates negatively should not be encouraged in the prison yards. We want people who would leave prison with a renewed positive attitude and mindset; people who would have stories to tell those in the outside world so they would learn from these stories and guard their steps, not those who would form some bad habits from prison and come out to influence others