Thus, every non-Kohen, man or woman, or even an impure person is qualified to do the slaughter. Therefore, the thought of anyone who does the slaughter counts, and if they intend to eat the sacrifice beyond the allotted time, the sacrifice becomes rejected.
A ritually impure person faces a special problem: he should take care not to make the meat of the sacrifice impure. He has to either have the level of impurity that cannot be transmitted through the knife, or he has to use a sharp reed, which, as a flat wooden object, does not transmit impurity. Additionally, he has to stand outside the Courtyard and use a very long knife.
Art: Gustave Caillebotte - Garlic Cloves And Knife On The Corner Of A Table