Martha takes a risk in employing DI John Bloom who crucially is an ex-undercover policeman who knows first hand what it's like to pretend to be someone you are not.
Martha takes a risk in. Martha is employing DI John Bloom. This DI John Bloom crucially is an ex-undercover policeman. This ex-undercover policeman knows first hand. It's like to pretend to be someone. You are not this first hand someone.