The weapon referred to as an M-79 grenade launcher is actually an M-16 rifle with an attached M-203 grenade launcher.
The officer refers to the grenade as an M-79 explosive round. The name M-79 actually refers to the weapon that fires it, the M-79 grenade launcher. It is a shotgun-looking weapon, unlike the weapon the detective picks up from the floor, which is an M-16 with an underslung M-203 grenade launcher.
The M-79 HE-Frag round has a delayed arming safety mechanism designed to prevent it going off within its fatal range of the person firing it. This range is approximately 100' (30m).
The grenade extracted from the patient's abdomen was named an M-79 grenade; an M-79 grenade is much smaller and lacks the fins present on the embedded grenade.
The Bible passage read by the chaplain first occurs at Matthew 4:6-7, and the New Testament begins about 3/4 of the way through a standard Bible. Yet he had it open half way, which would put him around Psalms.
While paramedic John is filling the radiator in Squad 51 with water, an alarm call to 4676 Elm street comes in. John forgets to put the radiator cap back on before closing the hood on the squad and driving off whit Roy for the call.
When they are moving the victim with the live grenade embedded in his abdomen, the police officer and at least one of the firemen are wearing their helmets with the chin strap in place. Unless it is a helmet with a face shield designed for explosives work, helmets are usually removed when handling unexploded ordnance, because they can capture shrapnel from an upward explosion and deflect it back into the wearer's head. Additionally, having the chin strap in place can snap the wearer's neck.