Historical clue formulations

• They might work on a block — 2022-03-12
• Keeps the beat? — 2017-02-25
• Soldiers' jobs — 2008-08-28
• Walks the beat — 2006-11-29
• Covers one's beat — 2001-12-09
• Reconnaissance groups — 1995-10-08
• Scout troop groups — 1995-03-18