The legal definition of “stunning” in the UK is to “render an animal unconscious until death”. The process of shechita conforms to this legal definition. It achieves what other methods attempt i.e. the immediate and irreversible abolition of consciousness until death. With other methods animals often regain consciousness from the “stun” and are conscious when they are “stuck”. This delay between stunning and sticking (stabbing) has been reported by animal welfare organisations who have recommended that there should be no more than fifteen seconds between the stunning and the sticking, but that is hardly ever achieved. With shechita there is no delay because the slaughter method incorporates an immediate stun. Shechita both stuns and slaughters in one action, thereby making it the most humane and efficient method. Conventional stunning methods or more correctly, pre-stunning methods, have been devised for use in abattoirs concerned with fast and efficient turnaround of production. They are all designed to subdue animals into a manageable state, for the benefit of abattoir operators. Each method of mechanical stunning is flawed, and each method fails to a substantial degree by inflicting pain and distress to millions of so-called “humanely slaughtered” animals. Captive-bolt shooting requires correct positioning of the gun which must be held pressed to the front of the skull. Since the animal’s head is not restrained, it can and does move so the shot is often in the wrong place and the animal must be shot again, sometimes two or three times. This causes great pain to the animal. Sometimes the gun is not properly maintained or the animal isparticularly heavy and the shot does not have sufficient power to damage the brain even though it penetrates the skull. Applying electric callipers or tongs for electric-shock stunning is often not effective due to the variables of position, moisture and humidity, strength of voltage, state of health of the animal, thickness of the hide and wool etc. The stun causes an epileptic seizure in the animal, and rather than anaesthetising it, it merely paralyses it so that it cannot respond to the pain it feels. Electro-shock stunning is used on smaller animals because they are only manually restrained. Because the majority of these sheep and pigs struggle to resist, several shocks are usually applied before the animals fall and lie fitting. Gas-narcosis causes the distress of suffocation and the pain of pulmonary emboli and pneumothorax. And whilst all conventional pre-stunning methods all too frequently fail to induce unconsciousness, they very often kill the weaker animals instead. And the “recoverable stun” simply is a practical impossibility to test on every animal, because as is demonstrated daily in the best operating theatres around the world, many patients fatally succumb to anaesthetics which are individually administered with great care. Gassing always results in a mass kill in a chamber which takes time to fill and is not administered separately to suit each animal.