MADISON, WIS. — This is an official press release from the U.S. Department of Justice (USAO - Wisconsin, Western), published as received.

MADISON, WIS. – Chadwick M. Elgersma, United States Attorney for the Western District of Wisconsin, announced that Alfredo Juarez-Perez, 55, Monterey, Mexico, was sentenced today by U.S. District Judge Conley to 54 months in federal prison for illegally reentering the United States. Juarez-Perez pleaded guilty to this charge on April 9, 2026. 

In March of 2025, the Wisconsin Department of Corrections Sex Offender Registry received an anonymous tip that Juarez-Perez was in Sun Prairie, Wisconsin, and had failed to register as a sex offender as required. Following his arrest on that charge, law enforcement discovered that he had been deported twice before – once in 2018 and again in 2021 – following convictions for illegal reentry in the Western District of Wisconsin and the Southern District of Texas. Juarez-Perez also has a prior federal conviction for distribution of cocaine and has been convicted of sexual assault twice in Dane County, Wisconsin. 

“Today’s sentence underscores that repeated criminal behavior, especially serious offenses like unlawful reentry, narcotics trafficking, and violent assault, will be met with decisive consequences,” said U.S. Attorney Elgersma. “Juarez-Perez has shown a clear disregard for our laws and for the safety of the community. My office remains committed to working with our partners to ensure that those who persist in endangering the public are identified, apprehended, and held fully accountable.”

At the sentencing, Judge Conley noted that since Juarez-Perez first entered the United States in 1990, he had been convicted of multiple drunk driving offenses, distribution of cocaine, sexual assault, and had failed to maintain his sex offender registry. Judge Conley stressed that these behaviors, along with Juarez-Perez’s criminal thinking, made him a danger to the community. 

The charge against Juarez-Perez was the result of an investigation conducted by the Department of Homeland Security. Assistant U.S. Attorneys Julie Pfluger and Louis Glinzak prosecuted this case.