anchor: No. 151 "Is it not a fact that, at the time you claim to have been waiting about at a solitary and unfrequented spot, you were really in the chemist's shop in Styles St. Mary, where you purchased strychnine in the name of Alfred Inglethorp?"
positive: Are you not lying about you true location at that time?
negative: We have proof that you did not visit the chemist's shop in Styles.