I don't see how the FSAI can say, no risk to the public. You do have to ask how it got into the burger if they don't slaughter horses for human consumption in Ireland or Yorkshire where is the meat from? All our meat is supposed to be traceable to source (unlike on the continent).
Horses are slaughtered for meat in the UK and Ireland. When you have a horse you are supposed to have a horse passport for it from the age of about four months old(may be six months) You as an owner have to sign to say horse will not go in the human meat chain or you sign to say it will at the end of it's life.
Depending on what section you sign depends on what drugs a vet can prescribe.
You also have to make sure of the last date the horse was wormed before the horse can be used for human consumption. It's one heck of a long time compared to cattle and sheep.
The persons horse which is put down is pd about ?1 per killo for good quality meat (young) the price then goes down per killo. I'm talking prices of 3 years ago though so no idea what they are now.
I learnt all this due to having the misfortune of having to have one of my home bred youngsters put down.
Due to a field accident (playing silly B's) he skidded on the wet grass lost his footing and slid into a gate post at speed end result was a head injury which resulted in a brain tumour.
From a very big 17hh cuddly baby he turned into an unpredictable dangerous horse scared of his own shadow. (Dangerous) So after 3 vet opinions it was decided the only and kindest option was to put him to sleep. Due to his unpredictable nature no one could put a needle in him to give a lethel injection, he couldn't be shot on the premises either due to no gaurantee he could be put down instantly due to his condition.
So the vets kindly arranged for him to be taken in a specialist horse box to be put down.
Each and everyone involved in his care were fantastic and I couldn't ask for more.
Personally I wouldn't eat horse meat but am thankfull for the valuable service provided by the abatoir concerned.