"Hullo, Bane," said Hagrid. "All right?"
"Good evening, Hagrid, I hope you are well?"
"Well enough. Look, I've jus' bin askin' Ronan, you seen anythin' odd in here lately? There's a unicorn bin injured –– would yeh know anythin' about it?"
(Harry Potter and the Sorcerer's Stone)
I’m wondering what the sentence would mean that has ‘would’ instead of ‘do’.