The full answer
Yes.
The animal must be alive when the valid Zabiha slaughter takes place.
An animal that has already died before the Zabiha cut is carrion and cannot become Halal afterward.
This is especially important when evaluating slaughter systems involving stunning or other pre-slaughter procedures.
Answers in the Halal Knowledge Center reflect the standards followed by Halal Monitoring Services (HMS). HMS certifies only what it checks.