Poor collection techniques and mistakes in chain-of-custody are the leading cause for dismissal of evidence in court. Willow, through our top-notch collection services, makes it priority to avoid these problems. Willow has a wide array of collection service options. We have the capability to collect on-site, at our facility or a partner facility, and with our one-of-a-kind, state licensed mobile collection units. We also provide pick-ups for specimens collected by your staff.