Gardai have been told that if their beards resemble "a badly watered lawn in a heatwave" after two weeks' growth, they should "concede graciously and admit defeat."
Hairy-faced cops have been warned to "smarten up" and make a decision if they, or their partners, want them to have beards or not.
The crackdown on claims of grooming rule breaches comes after a change in policy last July, when Commissioner Drew Harris made a decision to let cops to sport facial hair other than moustaches.
