ICE claims tattoos tie migrants to the Tren de Aragua gang. Experts say they aren't reliable identifiers.

Tattoos of crowns, a clock and other symbols have been used by the Trump administration to allege Venezuelan men deported from the U.S. are members of the Tren de Aragua gang. But experts and police in a Colorado city who have investigated the gang say tattoos aren't reliable markers of affiliation.

The administration alleges the deportees it sent to El Salvador's notorious maximum security prison are gang members, mostly with Tren de Aragua, and some with MS-13. It has also acknowledged that "many" of them have no criminal records.

President Trump invoked the 1798 wartime Alien Enemies Act, claiming Tren de Aragua is invading the United States, to deport many of the men. The administration also declared Tren de Aragua a terrorist organization.