The Justizvollzugsanstalt Witzwil (Prison Witzwil) is a men's prison in the canton of Bern, Switzerland. It consists of a closed part and a number of minimum security habitation units.[1] The prisoners work on the institution's huge farm estate on the territories of the municipalities Erlach, Gampelen and Ins in the canton of Bern and Haut-Vully in the canton of Fribourg. Former prisoners who are yet to find employment are also allowed to work on these farms.[2]
The main seat and official address are located in the community of Gampelen.