What happened to the prisoners when they first arrived at a concentration camp?

* At Auschwitz (from early 1942 on) the Jews were separated into fit for work and not fit for work. The latter were gassed as soon as possible, the former had to work as slave labourers. * At othe extermination camps, such as Sobibor and Treblinka, a small number of new arrivals were selected to help dispose of the corpses. * At ordinary concentration camps the newly arrived prisoners were sent off to work - as slave labour. * At some ordinary concentration camps, especially in the early days, there were 'initiation ceremonies', including severe beatings, for new arrivals.