Azzy and Estella as substitute members?
Like several people who envy Azzy's act of killing werewolves and saving the victims, Inspector Roy was also skeptical about it.
He didn't believe in the media and assumed that Azzy might have received help from his captain but had all the credit.
And when he personally saw the thug fall on the floor after being ambushed by Azzy, Roy believed that the werewolf was also probably ambushed in the dark. His impression of Azzy didn't change even as Azzy saved them.
That is the reason he directly asked him how is he here. Entering the premises of a police station in secret is the same as a petty crime.
Azzy was offended by his tone but he wasn't doing the job for praises or something. He saved them because he was in a position to be able to.