and some state codes research
As of 2004, the following states have stop-and-identify laws on the books:
Alabama Ala. Code §15-5-30
Arkansas Ark. Code Ann. §5-71-213(a)(1)
Colorado Colo. Rev. Stat. §16-3-103(1)
Delaware Del. Code Ann., Tit. 11, §§1902(a), 1321(6)
Florida Fla. Stat. §856.021(2)
Georgia Ga. Code Ann. §16-11-36(b)
Illinois Ill. Comp. Stat., ch. 725, §5/107-14
Kansas Kan. Stat. Ann. §22-2402(1)
Louisiana La. Code Crim. Proc. Ann., Art. 215.1(A)
Missouri Mo. Rev. Stat. §84.710(2)
Montana Mont. Code Ann. §46-5-401(2)(a)
Nebraska Neb. Rev. Stat. §29-829
New Hampshire N. H. Rev. Stat. Ann. §§594:2 and 644:6
New Mexico N. M. Stat. Ann. §30-22-3
New York N. Y. Crim. Proc. Law §140.50(1)
North Dakota N.D. Cent. Code §29-29-21
Ohio Ohio Rev. Code § 2921.29
Rhode Island R. I. Gen. Laws §12-7-1
Utah Utah Code Ann. §77-7-15
Vermont Vt. Stat. Ann., Tit. 24, §1983
Wisconsin Wis. Stat. §968.24