I first discovered Kate London through The Pigeonhole https://thepigeonhole.com/ - a great app which serialises new books. Gallowstree Lane is the third for DS Collins and DC Griffiths of The Metropolitan Series. The interesting thing is that Sarah Collins and Lizzie Griffiths aren't partners, so you get to see more scope of the case and cases.
Whilst concentrating on gangs and the destruction of knife crime, it's a wonderfully telling of police procedure powerplay.
It was very thought-provoking: How valuable are informants and undercover police to the system, is anyone expendable? Is one murder worth an entire investigation? Crime isn't always black and white, and as you find yourself siding with the lawless and then the law, it's hard not to be caught in the grey murky middle. I read the second half in one sitting and couldn't go to bed until I had finished.
Ms London's writing shines as does her authenticity (she used to be a police detective).
VERY HIGHLY RECOMMENDED.
Thank you so much the publisher and NetGalley for providing me with a complimentary electronic copy in return for an honest review.