The DCI Jones Casebook: Raymond Francis Collins by Kerry J. Donovan is a mystery/crime book. It's about Detective Chief Inspector David Jones who is investigating a murder case. I gave it five stars.
He works with Detective Sergeant Phil Cryer who has total recall and seems to bring up facts just to annoy Jones. "He cast a glance at Jones, still by the Rover. The boss, as usual, took his time. He studied the area, took everything in, and missed nothing.
"Cryer had waited four years to be assigned to DCI David Jones, the most successful detective in the history of the Midlands Constabulary. He wanted to learn from the best, and Jones was just that; the very best."
They had an adventure on the rooftops chasing the criminal.
Link to purchase: https://www.amazon.com/DCI-Jones-Casebook-Raymond-Collins-ebook/dp/B00CR039OA