Derb, I don’t think that’s quite right. So far as I recall, Beria used his house (which included purpose-built cells – you can still see their traces today, or at least you could in 1996) for the purposes you suggest (that’s what I meant by ‘extracurricular horrors’) but also, on occasion, for ‘official’ interrogations. Interestingly, a dozen skeletons were found buried just outside the property in 1993, helping confirm its evil reputation.