The Deuteronomic Code is the name given by academics to the law code set out in chapters 12 to 26 of the Book of Deuteronomy in the Hebrew Bible. The code outlines a special relationship between the Israelites and Yahweh and provides instructions covering "a variety of topics including religious ceremonies and ritual purity, civil and criminal law, and the conduct of war". They are similar to other collections of laws found in the Torah (the first five books of the Tanakh) such as the Covenant Code at Exodus 20–23, except for the portion discussing the Ethical Decalogue, which is usually treated separately. This separate treatment stems not from any concern over authorship, but merely because the Ethical Decalogue is treated academically as a subject in its own right. Almost the entirety of Deuteronomy is presented as the last few speeches of Moses, beginning with an historical introduction as well as a second introduction which expands on the Ethical Decalogue, and ending with hortatory speeches and final words of encouragement. Between these is found the law code, at Deuteronomy 12–26. In critical scholarship, this portion, as well as the majority of the remainder of Deuteronomy, was written by the Deuteronomist. Dating and authorship It is difficult to date the laws found in the Deuteronomic Code. There are many laws unique to Deuteronomy, such as the prohibition of sacrifice outside "the place which the Lord your God will choose" (Deuteronomy 12:5) and having a national Passover sacrifice in a national shrine (Deuteronomy 16:1-8). In contrast, other books in the Pentateuch refer to altars throughout Israel without condemnation. Both of these laws were observed for the first time under King Josiah, giving credence to the theory that Deuteronomy was written around that time. Many of the other laws can be found elsewhere in the Torah, and it is likely the Deuteronomistic author(s) were influenced by such laws. Biblical scholar Michael Coogan notes two examples, the Covenant Code and the Ritual Decalogue found in Exodus 20:22-23:33 and Exodus 34 respectively. Characteristics It is characteristic of the discourses of the Deuteronomic Code that the writer's aim is throughout parenetic, making passing allusions to history, for example at Deuteronomy 13:4-5, and 24:9, for the sake of the lessons that the writer believes deducible from it. In the treatment of the laws, they are not merely collected, or a series of legal enactments repeated, but developed