I'm a big fan of Denise Mina and this was really enjoyable.

Claudia is an expert in blood spatter and has developed a blood spatter test used in many criminal trials to convict multiple offenders.

However, Claudia discovers that he test may in fact be flawed leading to a number of potential miscarriages of justices. On the night of a big speech, Claudia plans to let her audience know about the tests flaws, however this was eradicate her life's work and the opulent lifestyle she has built for herself. When the time comes, will she be willing to reveal the truth.....

I raced through this relatively short novel and thoroughly enjoyed it. The dual timeline works really well as we learn how Claudia comes to understand the challenges of her test, alongside the present day when she is planning to reveal all in her keynote speech. But will she do it.....?

Read to find out!