Which are subject to גילוי?
Knife we know was good is found to have a nick after שחוטה. Does this disqualify the animal?
If one cut through the ושט and then the גרגרת was found to be torn away may we eat the animal?
Halachah is the animal is Kosher when the knife was used to cut bones afterwards.
A case occurred in which Rav Yosef forbade 13 animals due to a blemish found in the knife after they were all slaughtered. Would everyone agree?
Should the knife be checked before each שחיטה?