SAS Soldier Released from Prison

Sergeant Danny Nightingale, an SAS sniper, was released from court after being sentenced to 18 months for possessing a Glock handgun. His wife, Sally, campaigned for his release, raising awareness through media. Nightingale's defense of amnesia due to a brain injury was rejected. His commanding officer's testimony helped secure his release. Nightingale was portrayed as a gentle, life-saving warrior, known for inventing a life-saving dressing. The family is now reunited for Christmas, considering an appeal against his conviction.

What impact did Lieutenant Colonel Richard Williams have on the case?

Describe the significance of the '19 GAIL dressing' mentioned in the text.