Prison

If a Vampire ends up in jail there are concerns such as sunlight exposure, medical exams, and blood consumption without anyone noticing. The longer they go without blood the weaker they get. Really though escape from a standard jail would be a snap for any vampire. That being said it would be next to impossible for a vampire to end up in a non-paranormal prison against their will, to begin with. Overpowering, and/or hypnotizing law enforcement...