Justin Bieber Examined For Attack ... With A Nerf Gun!

Bieber Bieber is being examined on serious gun management expenses -- Nerf gun control!

Here's the tale.  Bieber was in Ottawa, North america in Nov when a women worker of the location where he was doing registered a cops review, declaring Bieber -- or someone who was Biebs nearby -- attacked her.

The lady informed North america cops she was hit by something.

We now know what the something was .... a kid-safe projectile from a Nerf gun.  Resources acquainted with the scenario tell TMZ ... Bieber was Nerf battling with his 3-year-old sibling and 4-year-old sis and obviously one of the darts hit the lady.

We're informed the lady delivered a fit and informed Bieber's individuals she was a protection officer for the location and was royally upset off.  She registered a cops review and the cops are actually getting it seriously -- they've already questioned some individuals at the location.

Getting hit by a Nerf projectile is definitely frustrating, but criminal? Be serious, eh!