Simlah Chadasha writes ([2:25](http://hebrewbooks.org/pdfpager.aspx?req=35269&st=&pgnum=25)) that those groups of people that do not accept the validity of the Oral Torah such as צדוקים ([Sadducees](http://en.wikipedia.org/wiki/Sadducees)) *is* acceptable, because even though all laws of kosher slaughter are recorded in the Oral Law and no mention of them is made in the Written Law, and the Sadduccees [rejected the Oral Law](http://en.wikipedia.org/wiki/Sadducees#General); nevertheless, since it is clear that the laws of kosher slaughter are contained outside of the Written Law\*, the slaughter of a Sadducee is acceptable (if we have established that this particular person knows the laws -- see there) because they have the same tradition of slaughter laws that we do.  

What is a little confusing is that at the end of that halacha, after writing that the *shechita* of Sadducees *is* acceptable, Simla Chadasha [writes](http://hebrewbooks.org/pdfpager.aspx?req=35269&st=&pgnum=25) "therefore, the *shechita* of Karaites is **not** acceptable." [*emphasis mine*] 

What follows is from my rebbi's notes on Simla Chadasha, answering this question:

> 
> The Karaites are different from the Sadducees and the Bitusim. While
>  the latter are allowed to slaughter for a Jew, if they are being
>  adequately supervised, the Karaites are not. The Karaites who lived at
>  the time of the Simlah Chadashah, did not accept the oral laws, even
>  those pertaining to shechitah. As a result they were not considered to
>  be בר זביחה and that which they slaughtered is neveilah. Once a
>  person is not a ‫בר זביחה‬ the meat this person slaughtered is
>  forbidden regardless of the level of certification. The meat is
>  neveilah even if every action of this person were observed to be
>  correct and the knife was inspected prior to the shechitah and found
>  to be perfect.
> 
> 
> 

**Question 1:** Is the above quote accurate? How do Karaites slaughter animals to avoid the prohibitions of *neveilah* נבילה (Deut. [14:21](http://www.chabad.org/library/bible_cdo/aid/9978#v=21)) and *treifah* טריפה (Ex. [22:30](http://www.chabad.org/library/bible_cdo/aid/9883#v=30))?  

**Question 2:** How would a Karaite explain Deut. [12:21](http://www.chabad.org/library/bible_cdo/aid/9976#v=21), "וזבחת...כאשר צויתיך" "and you shall slaughter...how I commanded you" -- where is that צווי if it was not written down anywhere in the Torah?

---

\* *Because it is written (Deut. [12:21](http://www.chabad.org/library/bible_cdo/aid/9976#v=21)) "וזבחת...כאשר צויתיך" "and you shall slaughter...how I commanded you." The problem is that there is no mention of a method of slaughter recorded anywhere in Tanach. Therefore, that this verse teaches that Hashem taught Moshe about the method of kosher slaughter on Mount Sinai. (Chullin [28a](http://hebrewbooks.org/shas.aspx?mesechta=31&daf=28&format=pdf), SC [1:1](http://hebrewbooks.org/pdfpager.aspx?req=35269&st=&pgnum=9))*