It reminds me of the music hall "Gendarmes Duet" song from 1859
We're public guardians bold, yet wary
And of ourselves we take good care
To risk our precious lives we're chary
When anger looms, we're never there
But when we meet a helpless woman
Or little boys that do no harm
We run them in, we run them in
We run them in, we run them in
We show them we're the bold gendarmes
http://monologues.co.uk/musichall/Songs-G/Gendarmes-Duet.htm