Complex sentence: Detective Sergeant Luke French is a fictional police officer of the Criminal Investigation Department in Wyvern Constabulary's Holby South Police Station, his character is featured in Holby Blue a spin-off of the long running hospital drama Holby City.
Split into simpler sentences: Detective Sergeant Luke French is a fictional police officer of the Criminal Investigation Department within Wyvern Constabulary's, Holby South Police Station. His character is featured in Holby Blue a spin-off of the long running medical drama Holby City.