After they discovered the severed head and determined how and where the victim was decapitated they never wondered where the BODY was for the last 10 years.
PC Sean Cobley issues a ticket to Bill for speeding on a bicycle, cyclist are not governed by speed limits in the UK. He could have given him a ticket for careless cycling though.
Yeardsley is portrayed as a local girl who grew up on a farm in rural Lincolnshire, however she speaks with a broad Yorkshire accent.