Bone Collector, The (Jeffery Deaver) - Spare Uniform
On the first page of Chapter 28, Amelia Sachs removes and flings away off her gasoline-soaked police uniform blouse before entering a burning church. 3 pages later in the church basement she cuts a patch off of her uniform blouse to protect her hand from the hot handle of a fire extinguisher. (pages 342 & 345 of paperback edition.)