### Question
How does the law define precursor?


### Answer
Under *18 U.S.C. § 229F*, **precursor** is defined as:

> any chemical reactant which takes part at any stage in the production by whatever method of a toxic chemical

#### Citation:
  - *18 U.S.C. § 229F*
  - Heading: **PART I-CRIMES > CHAPTER 11B-CHEMICAL WEAPONS**

