If, as the escape of the result, or attempt to escape, we have changed their policies and measures we are taking, or introduced some new plan, they have caught are faster than our people who are, after all, had other things to do besides watch duty at the castle . The majority of the prisoners were "on duty" all the time; another life they did not. Another difficulty in maintaining the security relating to our main camp staff, in particular the non-commissioned officers. The longer they stayed in the castle, the better recognized prisoners and their techniques. And the more mired in bribery (cigarettes, chocolate or coffee); between staff and prisoners appeared familiarly friendly relations. Another weak point is the inconvenience that any German lower ranks feel in communion with the officers of any nationality. And if we replaced these other non-commissioned officers, the newcomers in their place, take months to learn the tricks of the trade, and during this time the prisoners had time to extract every possible benefit from this knowledge.