The Controller by Linda Coles

It takes courage to change sides.
They're making big money. When a group kidnapping dogs for ransom hits South London, local detective Amanda Lacey investigates after an acquaintance alerts her she isn't the only victim of the upsetting crime.
But what starts out as a way to make quick money for the gang, quickly turns sinister when a local hard-man gets involved. And Pete didn't sign up for what happens next. With a past record, can he put his personal fears aside and involve the police before it's too late?
Find out what Pete does next and listen toThe Controllertoday.
This is the first installment of the British detective series featuring DS Amanda Lacey and DC Jack Rutherford. Meet two characters you can't help but enjoy as they solve crimes involving ordinary people in extraordinary circumstances.
(Note from the author: fear not the subject matter, you'll be pleasantly surprised by this story)
Reviews so far:
"Great first novel. Unexpected twists kept the tension going. I was expecting a more blood-and-guts story but in fact, the subject matter worked surprisingly well."
"I was on edge the entire time. Great read! I didn't want it to end at all wishing there was at least 1 more chapter."
"Well written thriller with protagonists I could immediately like. Well written, quick read. I loved the book, in spite of subject matter. I have dogs, and wow I could imagine! Recommended."