Episode 400 is the 2061st episode of The Bill.
DC Stuart Turner is brought in from West End station to assist DCs Perkins and Sim with an investigation into a serious assault. PCs Fletcher and Casper compete for a place on the area car driving course. PCs Kapoor and Harman decide to put their names forward for the post of Federation representative. DCI Meadows offers Turner a detective sergeant position at Sun Hill.