Related Clues:

• Device that's defective, for example, is rejected
• Identification mark of one from a set that's incomplete
• Hector has no right to the insignia
• Bridge team breaking scout's honour
• Emblem showing membership etc
• Emblem signifying membership
• Emblem signifying rank, membership etc
• Insignia (of office?)
• Award sewn on a sash
• A detective might flash it
• "The Red ___ of Courage"
• It's flashed by the law
• Emblem carried on a beat
• Distinguishing emblem
• Every cop is behind one