Similar badge with blades were also used by Met. Police motorcyclist and mounted units with the badge mounted on a metal or hard plastic backing.
Description of the Coat of arms of Metropolitan Police:
Crest: On a wreath Argent and Azure, three arrows, one in pale and two in saltire, barbs downward, Proper, banded Azure and ensigned by the Royal Crown proper.
Escutcheon: Azure, a portcullis chained within a double tressure Flory counterflory Argent.
Supporters: On either side a lion rampant guardant Argent, gorged with a collar Azure charged alternately with bezants and bees volant, grasping in the interior paw a column Or.