Original sentence: Advocates however contend that it causes little or no pain to the animal and drains its blood more effectively than other methods.Many refer to a study done by Professor Wilhelm Schulze et al.They also claim that the Islamic method of slaughter is the fastest method to kill the animal among those used in the modern day.This study is cited by the German Constitutional Court in its decision regarding dhabiha slaughtering.University of Veterinary Medicine in Germany.at the