Do you still slaughter the animals in front of each other? How do you ensure when people slaughter the animals themselves that it is done humanely?

Anna, Our establishment is regulated by USDA not FDA. Not only does USDA ensure humane handling compliance on a daily operating basis but Islam prohibits cruelty to animals. It is scholarly concluded that the Halal slaughter is one of the most humane handling to animals. Please refer to: https://www.halalwatchworld.org/post-halal-more-or-less-humane

So the actual FDA comes to oversee every untrained person slaughter…?

No they don't one by one Fda is there to insure that