HARLINGEN — A Harlingen woman has been sentenced to 10 years in federal prison for conspiring to distribute methamphetamine.
Irma Matamoros-Santillan, 30, pleaded guilty on Oct. 19, 2016.
A federal judge recently sentenced her to 120 months imprisonment to be immediately followed by five years of supervised release.
On Aug. 10, 2016, a Greyhound bus entered the U.S. Border Patrol checkpoint outside of Falfurrias for primary inspection.
At that time, authorities said they identified Lisa Rustin, 18, of Ingleside, and discovered approximately 1.3 kilograms of marijuana concealed in her bags.
The follow-up investigation revealed Matamoros-Santillan was seated a few rows behind her where authorities also discovered 480 grams of suspected methamphetamine in an unclaimed bag.
Authorities said they determined the women were traveling together and were responsible for the narcotics.
A laboratory analysis determined the methamphetamine had a purity of 94 percent, yielding 452 grams of actual methamphetamine.
Matamoros-Santillan will remain in custody pending transfer to a U.S. Bureau of Prisons facility to be determined in the near future.
Rustin also pleaded guilty and will be sentenced at a later date. She remains in custody.
The Drug Enforcement Administration and the Border Patrol conducted the investigation. Assistant U.S. Attorney Lance Watt is prosecuting the case.