[Djack3264]

When out on the town
My department issued sidearm Smith & Wesson M&P .45
2 spare Pistol Mags
Handcuffs
Surefire Backup Light
SOG Multitool
CRKT M16-14LE Knife
Work ID/Credentials and personal wallet with random cards ID inside

I have a London Bridge Trading LBT-1652A Backpack that I keep in the trunk as sort of a bug-out-bag. Inside it I have:
Camelbak 100 OZ Resorvoir full of filtered water (changed/cleaned every couple weeks) Water purification tablets
Medical Kit containing basic med supplies plus quickclot gauze, chest seal, cpr mask, burn gel, SOF Tourniquet and some other random stuff.
2 MRE's
Box of Cliff Bars
Nalgene bottle with LED equipped cap
Surefire 6P Defender and 12 Extra Batteries
Surefire Helmet Light mounted on an EOTAC Operators hat
Black Diamond Headlamp
8 Chem lights (2-red, 2-green, 2-blue, 2-IR)
Extra battery for my police radio
Frog Toggs Rain gear
TAD Gear Ranger Hoodie
6 packs of Hand Warmers
3 pair of socks in a waterproof bag
1 Pair of Nomex Flight Gloves
Fleece watch cap
Sig P229 with 2 extra mags
8 Magpul PMAGS loaded with duty .223 Ammo
Garmin GPS
Solar charger with multiple adapters
Pistol and rifle cleaning kit, Extra bolt assembly for my issued M-4

There's probably more stuff in there but this is what I can think of at the moment. I transfer the bug out bag from my POV to my patrol car when I'm working. It's my "active shooter" bag when on-duty. When working I sign out a PVS 14 and keep that in my bag as well.