Are States required to act on arrest warrants issued by other states?

[Whack-a-Mole]

I was reading this article on a guy who is trying to rent out space at the National Press Club.

Apparently a county in Colorado has an outstanding arrest warrant for the guy.

I can understand that other states cannot fall over themselves searching for people wanted in different states. But if a guy wanted in one state clearly pops on the radar as this guy did can (in this case) Colorado call the local police in another state and tell them to go get him and ship him back to Colorado? Are the local police required to do so?

[Gfactor]

Under certain circumstances, yes. But typically you need more than an arrest warrant to invoke the process of interstate rendition:

A Person **charged ** in any State with Treason, Felony, or other Crime, who shall flee from Justice, and be found in another State, shall on Demand of the executive Authority of the State from which he fled, be delivered up, to be removed to the State having Jurisdiction of the Crime.

(Emphasis added). http://caselaw.lp.findlaw.com/data/constitution/article04/

Whenever the executive authority of any State or Territory demands any person as a fugitive from justice, of the executive authority of any State, District, or Territory to which such person has fled, and produces a copy of an **indictment ** found or an affidavit made before a magistrate of any State or Territory, charging the person demanded with having committed treason, felony, or other crime, certified as authentic by the governor or chief magistrate of the State or Territory from whence the person so charged has fled, the executive authority of the State, District, or Territory to which such person has fled shall cause him to be arrested and secured, and notify the executive authority making such demand, or the agent of such authority appointed to receive the fugitive, and shall cause the fugitive to be delivered to such agent when he shall appear. If no such agent appears within thirty days from the time of the arrest, the prisoner may be discharged.

(Emphasis added.) 18 U.S. Code § 3182 - Fugitives from State or Territory to State, District, or Territory | U.S. Code | US Law | LII / Legal Information Institute

So formally, federal law requires that the guy be charged with a crime, an arrest warrant doesn’t implicate federal law.

[Gfactor]

Here is a previous thread on interstate rendition: Why would one waive extradition? - Factual Questions - Straight Dope Message Board

[Squink]

Delaware got him:

Sinclair was arrested by DC Police after 2 US Marshals showed up and presented a warrant from the State of Delaware for Sinclair’s arrest. Montgomery Blair Sibley, who’s had his law license suspended by the District of Columbia and Florida, and who was previously Sinclair’s attorney, reviewed the warrant and then Sinclair was led away.]

Speculation is that the arrest stemmed from a Delaware warrant, although there is also an outstanding felony warrant out for Sinclair from the Pueblo County (CO) Sheriff’s Department.