Thursday, 7.30pm, National Geographic If you’ve been to Las Vegas you probably won’t be too surprised to learn there’s a jail there. This series is all about life on the inside. However, in the vein of the old adage about what happens in Vegas stays in Vegas, the episode is wryly titled Come on Vacation, Leave on Probation. Each year the jail sees almost 80,000 people who have been arrested and, as they also say in Vegas, you never know who is coming in next. Get picked up on the strip and you’ll probably end up in the Clark County Detention Centre. Just like Vegas itself, the action at the jail is 24/7. On average the facility holds 3500 inmates a day, many of them drunk or high. If you are expecting to see famous types you’ll be disappointed. Instead, the usual raft of petty criminal types is peppered with doctors, lawyers, journalists and teachers. Perhaps because they are so often intoxicated it doesn’t seem to dawn on many of the inductees that their predicament is serious. However, after going through what’s called ‘‘ booking’’ (fingerprinting, clothing and body searches) comes the moment of truth when they find out what they are charged with and what the consequences will be. If nothing else this may work as aversion therapy for those inclined to have too much fun on holidays.