Blood-soaked clothing seized as evidence from crime scenes dries in an unsealed environment because clogged filters prevent ventilation in blood-drying cabinets. Clogged filters cause ventilation system alarms to go off "24/7," according to internal emails.

Blood-soaked clothing seized as evidence from crime scenes dries in an unsealed environment because clogged filters prevent ventilation in blood-drying cabinets. Clogged filters cause ventilation system alarms to go off "24/7," according to internal emails.