First things first. Y.T. has many a thing hanging off her uniform. The uniform has a hundred pockets, big flat pockets for deliveries and eensy narrow pockets for gear, pockets sewn into sleeves, thighs, shins. The equipment stuck into these multifarious pockets tends to be small, tricky, lightweight: pens, markers, penlights, penknives, lock picks, bar-code scanners, flares, screwdrivers, Liquid Knuckles, bundy stunners, and lightsticks. A calculator is stuck upside-down to her right thigh, doubling as a taxi meter and a stopwatch.