Forensics Datum (#17796)

* forensics datum initial work

* typo fix

* glove recursion fix

* missing bloodtype on organ data

* removed frustrating and unneeded b_type var from humans

* no leaky

* listcheck

* documenting

* documentation

code/modules/projectiles/guns/launcher/crossbow.dm

@@ -149,7 +149,7 @@
 			var/obj/item/stack/rods/R = W
 			if (R.use(1))
 				bolt = new /obj/item/arrow/rod(src)
-				bolt.fingerprintslast = src.fingerprintslast
+				bolt.add_fingerprint(user)
 				bolt.loc = src
 				update_icon()
 				user.visible_message("[user] jams [bolt] into [src].","You jam [bolt] into [src].")

code/modules/projectiles/guns/projectile.dm

@@ -87,10 +87,10 @@
 		var/mob/living/carbon/human/H = loc
 		if(istype(H))
 			if(!istype(H.gloves, /obj/item/clothing))
-				H.gunshot_residue = chambered.caliber
+				H.add_gunshotresidue(chambered)
 			else
 				var/obj/item/clothing/G = H.gloves
-				G.gunshot_residue = chambered.caliber
+				G.add_gunshotresidue(chambered)
 
 	switch(handle_casings)
 		if(EJECT_CASINGS) //eject casing onto ground.