Possible Clues:

• People in authority or with a high military rank
• Those perhaps hitting the high notes in fanfare for VIPs
• Senior officers stop bars becoming disorderly
• They command outer garments to cover underwear
• VIPs with supporters in T-shirts?
• Jumpers, with underwear included, for military chiefs
• People in authority (informal)
• General Assembly?
• Military VIPs (informal)