Where to find crossbow arrows/bolts, or do they need to be crafted?

[randmanq 38]

Where does the arrows and quiver for the crossbow spawn, or does the crossbow's arrow/bolts have to be crafted? If so, what is the crafting recipe?

 

And does anyone have a picture of the arrows or a video showing them?

 

Thank you 

[tiadashi 262]

found some bolts (xbow) in the trunk of a police car

[DropBearChick 1216]

Found so e in the police station and construction site