[jmc813]

Well, in post #135, you felt we could get rid of the DEA. Legalizing only marijuana will not eliminate the need for the DEA. Actually, nothing would change for the better. I see no benefit in casting my vote for this scheme.

Where does tthe Constitution authorize the DEA?

[robertpaulsen]

"Where does tthe Constitution authorize the DEA?"

Article I, Section 8, the Necessary and Proper Clause. Since Congress has the constitutional authority to prohibit the commerce of certain drugs, the Necessary and Proper Clause provides Congress with the federal power to enforce those restrictions. How else?

The same is used to justify the FBI, BATF, IRS, etc.