"Quincy M.E." A Dead Man's Truth (1977)

I turned on this episode of 'Quincey' just as Quincey was demonstrating how a police shooting occurred. After the demonstration Quincey says there must be a bullet in the far wall that was not previosly found. The wall contained shelving for the sale of stereos. Sure enough they find the bullet not easily seen. Why? Because the bullet skimmed the underside of one of the shelves lifting it slightly before embedding itself in the wall after which the shelf dropped back into place obscuring the view of the bullet. Why do I bring this up? There was an episode of 'Dragnet' that aired a few days ago with exactly the same scenario.

S2, Ep2... 21 Sep. 1967 The Shooting Board... After work Joe Friday goes by a laundromat to buy cigarettes. He interrupts a burglar stealing from the coin box, and shots are fired. The burglar dies, and Friday is investigated by the shooting board to see if it is a justified shot.