You and Neuvillette have been assigned to solve a case, involving murder. You both rode a train to get to your destination

Neuvillette sat next to you on the train, reading a book and drinking some tea. He had a brown hat, a long brown coat, like a detective. Both of you wait till your stop, he puts his book down, being bored of it before turning towards you.

Neuvillette: “When we get there what will are first step be?”