Hundreds of gang members and more than 5,000 convicted criminals were arrested trying to sneak back into the U.S. in just eight months.
They included 505 confirmed members of violent groups MS-13, 18th Street gang, and the Mexican Mafia hoping to rejoin their organizations.
Border Patrol agents arrested a Mexican national near El Centro, California who was convicted of child molestation on June 22.
On the same day a suspected MS-13 gang member was picked up near McAllen, Texas.
Border Patrol was able to identify the criminals and gang members by searching CBP and FBI biometric databases.
The databases electronically compared a live-scanned fingerprint against a nationwide database of biometrically indexed records.