diff --git a/code/WorkInProgress/detective_work.dm b/code/WorkInProgress/detective_work.dm
index 48e741c7295..2fd443fb5cb 100644
--- a/code/WorkInProgress/detective_work.dm
+++ b/code/WorkInProgress/detective_work.dm
@@ -358,7 +358,7 @@ obj/machinery/computer/forensic_scanning
 					scan_process = 0
 					scan_name = scanning.name
 					scan_data = "<u>[scanning]</u><br><br>"
-					if (scanning.blood_DNA)
+					if (scanning.blood_DNA.len)
 						scan_data += "Blood Found:<br>"
 						for(var/i = 1, i < (scanning.blood_DNA.len + 1), i++)
 							var/list/templist = scanning.blood_DNA[i]
diff --git a/code/game/atom_procs.dm b/code/game/atom_procs.dm
index 52b1520b2c2..aeac2e04bbf 100644
--- a/code/game/atom_procs.dm
+++ b/code/game/atom_procs.dm
@@ -139,7 +139,7 @@
 		return 0
 	if (!( src.flags ) & 256)
 		return
-	if (src.blood_DNA)
+	if (src.blood_DNA.len)
 		if (istype(src, /obj/item)&&!istype(src, /obj/item/weapon/melee/energy))//Only regular items. Energy melee weapon are not affected.
 			var/obj/item/source2 = src
 			source2.icon_old = src.icon
@@ -148,20 +148,15 @@
 			I.Blend(new /icon('blood.dmi', "itemblood"),ICON_MULTIPLY)
 			I.Blend(new /icon(src.icon, src.icon_state),ICON_UNDERLAY)
 			src.icon = I
-			if(src.blood_DNA.len)
-				var/inthere = 0
-				for(var/i = 1, i <= src.blood_DNA.len, i++)
-					var/list/templist = src.blood_DNA[i]
-					if(templist[1] == M.dna.unique_enzymes && templist[2] == M.dna.b_type)
-						inthere = 1
-						break
-				if(!inthere)
-					src.blood_DNA.len++
-					src.blood_DNA[src.blood_DNA.len] = list(M.dna.unique_enzymes,M.dna.b_type)
-			else
-				var/list/blood_DNA_temp[1]
-				blood_DNA_temp[1] = list(M.dna.unique_enzymes, M.dna.b_type)
-				src.blood_DNA =  blood_DNA_temp
+			var/inthere = 0
+			for(var/i = 1, i <= src.blood_DNA.len, i++)
+				var/list/templist = src.blood_DNA[i]
+				if(templist[1] == M.dna.unique_enzymes && templist[2] == M.dna.b_type)
+					inthere = 1
+					break
+			if(!inthere)
+				src.blood_DNA.len++
+				src.blood_DNA[src.blood_DNA.len] = list(M.dna.unique_enzymes,M.dna.b_type)
 		else if (istype(src, /turf/simulated))
 			var/turf/simulated/source2 = src
 			var/list/objsonturf = range(0,src)
@@ -179,20 +174,15 @@
 				this.viruses += newDisease
 				newDisease.holder = this
 		else if (istype(src, /mob/living/carbon/human))
-			if(src.blood_DNA.len)
-				var/inthere = 0
-				for(var/i = 1, i <= src.blood_DNA.len, i++)
-					var/list/templist = src.blood_DNA[i]
-					if(templist[1] == M.dna.unique_enzymes && templist[2] == M.dna.b_type)
-						inthere = 1
-						break
-				if(!inthere)
-					src.blood_DNA.len++
-					src.blood_DNA[src.blood_DNA.len] = list(M.dna.unique_enzymes,M.dna.b_type)
-			else
-				var/list/blood_DNA_temp[1]
-				blood_DNA_temp[1] = list(M.dna.unique_enzymes, M.dna.b_type)
-				src.blood_DNA =  blood_DNA_temp
+			var/inthere = 0
+			for(var/i = 1, i <= src.blood_DNA.len, i++)
+				var/list/templist = src.blood_DNA[i]
+				if(templist[1] == M.dna.unique_enzymes && templist[2] == M.dna.b_type)
+					inthere = 1
+					break
+			if(!inthere)
+				src.blood_DNA.len++
+				src.blood_DNA[src.blood_DNA.len] = list(M.dna.unique_enzymes,M.dna.b_type)
 		else
 			return
 	else
@@ -249,21 +239,21 @@
 
 	if (!( src.flags ) & 256)
 		return
-	if ( src.blood_DNA )
+	if ( src.blood_DNA.len )
 		if (istype (src, /mob/living/carbon))
 			var/obj/item/source2 = src
-			source2.blood_DNA = null
+			source2.blood_DNA = list()
 			//var/icon/I = new /icon(source2.icon_old, source2.icon_state) //doesnt have icon_old
 			//source2.icon = I
 		if (istype (src, /obj/item))
 			var/obj/item/source2 = src
-			source2.blood_DNA = null
+			source2.blood_DNA = list()
 //			var/icon/I = new /icon(source2.icon_old, source2.icon_state)
 			source2.icon = source2.icon_old
 			source2.update_icon()
 		if (istype(src, /turf/simulated))
 			var/obj/item/source2 = src
-			source2.blood_DNA = null
+			source2.blood_DNA = list()
 			var/icon/I = new /icon(source2.icon_old, source2.icon_state)
 			source2.icon = I
 	if(src.fingerprints && src.fingerprints.len)
diff --git a/code/game/objects/devices/PDA/PDA.dm b/code/game/objects/devices/PDA/PDA.dm
index c9abad11b99..19c2ffd581b 100644
--- a/code/game/objects/devices/PDA/PDA.dm
+++ b/code/game/objects/devices/PDA/PDA.dm
@@ -738,7 +738,7 @@
 						user << "\blue No fingerprints found on [C]"
 				else
 					user << text("\blue [C]'s Fingerprints: [md5(C:dna.uni_identity)]")
-				if ( !(C:blood_DNA) )
+				if ( !(C:blood_DNA.len) )
 					user << "\blue No blood found on [C]"
 				else
 					user << "\blue Blood found on [C]. Analysing..."
diff --git a/code/game/objects/devices/scanners.dm b/code/game/objects/devices/scanners.dm
index 2d3f8b6c6ae..182730a526d 100644
--- a/code/game/objects/devices/scanners.dm
+++ b/code/game/objects/devices/scanners.dm
@@ -122,7 +122,7 @@ MASS SPECTROMETER
 
 				user << "\blue Done printing."
 			user << text("\blue [M]'s Fingerprints: [md5(M.dna.uni_identity)]")
-		if ( !(M.blood_DNA) )
+		if ( !(M.blood_DNA.len) )
 			user << "\blue No blood found on [M]"
 		else
 			user << "\blue Blood found on [M]. Analysing..."
@@ -145,10 +145,10 @@ MASS SPECTROMETER
 					user << "\blue Blood type: [templist[2]]\nDNA: [templist[1]]"
 			return
 		var/duplicate = 0
-		if ((!A.fingerprints || A.fingerprints.len == 0) && !(A.suit_fibers) && !(A.blood_DNA))
+		if ((!A.fingerprints || A.fingerprints.len == 0) && !(A.suit_fibers) && !(A.blood_DNA.len))
 			user << "\blue Unable to locate any fingerprints, materials, fibers, or blood on [A]!"
 			return 0
-		else if (A.blood_DNA)
+		else if (A.blood_DNA.len)
 			user << "\blue Blood found on [A]. Analysing..."
 			sleep(15)
 			if(!duplicate)
@@ -231,7 +231,7 @@ MASS SPECTROMETER
 				var/list/blood = temp[4]
 				if(!blood)
 					blood = list()
-				if(A.blood_DNA)
+				if(A.blood_DNA.len)
 					for(var/j = 1, j < (A.blood_DNA.len + 1), j++)	//Blood~~~
 						if(!blood.Find(A.blood_DNA[j]))	//It isn't!  Add!
 							blood += A.blood_DNA[j]
diff --git a/code/game/objects/items/item.dm b/code/game/objects/items/item.dm
index 69902324703..e0ad7935029 100644
--- a/code/game/objects/items/item.dm
+++ b/code/game/objects/items/item.dm
@@ -100,7 +100,7 @@
 			t = "huge"
 		else
 	if ((usr.mutations & CLUMSY) && prob(50)) t = "funny-looking"
-	usr << text("This is a []\icon[][]. It is a [] item.", !src.blood_DNA ? "" : "bloody ",src, src.name, t)
+	usr << text("This is a []\icon[][]. It is a [] item.", !src.blood_DNA.len ? "" : "bloody ",src, src.name, t)
 	if(src.desc)
 		usr << src.desc
 	return
diff --git a/code/modules/chemical/Chemistry-Reagents.dm b/code/modules/chemical/Chemistry-Reagents.dm
index aec2e126350..850e89084c0 100644
--- a/code/modules/chemical/Chemistry-Reagents.dm
+++ b/code/modules/chemical/Chemistry-Reagents.dm
@@ -179,7 +179,7 @@ datum
 					var/obj/effect/decal/cleanable/blood/blood_prop = locate() in T
 					if(!blood_prop)
 						blood_prop = new(T)
-						blood_prop.blood_DNA = list(self.data["blood_DNA"])
+						blood_prop.blood_DNA = list(list(self.data["blood_DNA"]))
 					for(var/datum/disease/D in self.data["viruses"])
 						var/datum/disease/newVirus = new D.type
 						blood_prop.viruses += newVirus
@@ -196,7 +196,7 @@ datum
 					var/obj/effect/decal/cleanable/xenoblood/blood_prop = locate() in T
 					if(!blood_prop)
 						blood_prop = new(T)
-						blood_prop.blood_DNA = list(self.data["blood_DNA"])
+						blood_prop.blood_DNA = list(list(self.data["blood_DNA"]))
 					for(var/datum/disease/D in self.data["viruses"])
 						var/datum/disease/newVirus = new D.type
 						blood_prop.viruses += newVirus
diff --git a/code/modules/mob/new_player/new_player.dm b/code/modules/mob/new_player/new_player.dm
index 6498340632e..64f207624f6 100644
--- a/code/modules/mob/new_player/new_player.dm
+++ b/code/modules/mob/new_player/new_player.dm
@@ -274,7 +274,7 @@
 	proc/AnnounceArrival(var/mob/living/carbon/human/character, var/rank)
 		if (ticker.current_state == GAME_STATE_PLAYING)
 			var/obj/item/device/radio/intercom/a = new /obj/item/device/radio/intercom(null)
-			a.autosay("[character.real_name] has arrived on the station.", "Arrivals Announcement Computer")
+			a.autosay("[character.real_name],[character.wear_id.assignment ? " [character.wear_id.assignment]," : "" ] has arrived on the station.", "Arrivals Announcement Computer")
 			del(a)
 
 
diff --git a/code/unused/pda2/scanners.dm b/code/unused/pda2/scanners.dm
index 9463558b347..499b8679542 100644
--- a/code/unused/pda2/scanners.dm
+++ b/code/unused/pda2/scanners.dm
@@ -62,7 +62,7 @@
 					dat += "\blue Unable to scan [A]'s fingerprints.\n"
 				else
 					dat += "\blue [H]'s Fingerprints: [md5(H.dna.uni_identity)]\n"
-				if ( !(H.blood_DNA) )
+				if ( !(H.blood_DNA.len) )
 					dat += "\blue No blood found on [H]\n"
 				else
 					for(var/i = 1, i < H.blood_DNA.len, i++)