Stunning or shocking animal before slaughter according to law

Asalamualaikum Mufti Saheb,

I am living in Sweden and according to the Swedish law an animal can be slaughtered for consumption only after it has been stunned-electric shock. we have an abattoir here where sheep are given electric shocks and then a Muslim brother slaughters the sheep the animal is still alive according to the brother who slaughters the sheep- with a knife according to Islamic rites. Many Muslim brothers have witnessed the process of slaughter and they consider the slaughter Halal for consumption for the local Muslim community . Please clarify if this meat is Halal.

Aslamualaikum
. Tajamul