Reasonable Grounds is the 482nd episode of The Bill.
W.P.C. Datta and P.C. Smollett investigate when a 7-year-old boy is reported missing by his parents. P.C. Stringer gets the job of informing a man that his brother is dead. The man takes off through a window as soon as he sees Stringer, leaving him and P.C. Stamp to figure out why.