A push dagger is a short-bladed dagger with a "T" handle designed to be grasped and held in a closed-fist hand so that the blade protrudes from the front of the fist, either between the index and middle fingers or between the two central fingers, when the grip and blade are symmetrical.
A Dudley push dagger
Image: Push dagger 2009 G1
Knife legislation is defined as the body of statutory law or case law promulgated or enacted by a government or other governing jurisdiction that prohibits, criminalizes, or restricts the otherwise legal manufacture, importation, sale, transfer, possession, transport, or use of knives.
An anti-knife crime demonstration in Wood Green, north London, October 2019