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Former Fresno detective arrested, accused of embezzling $60,000 in evidence

Fresno Police Department headquarters in downtown Fresno, California.
Joe Moore
/
KVPR File Photo
Fresno Police Department headquarters in downtown Fresno, California.

FRESNO, Calif. – A former Fresno police detective is facing criminal charges for allegedly embezzling more than $60,000 from an evidence room.

Attorney General Rob Bonta’s office has charged Rey Ariel Medeles, a former detective with the Fresno Police Department’s Major Narcotics Team, with two counts of grand theft and two counts of preparing false documentary evidence.

“California peace officers have a duty to protect the public and uphold the public trust. Individuals who abuse that trust for personal gain violate their duty to the people and the law,” Bonta said in a press release.

Authorities began investigating Medeles in early 2024, after Fresno police began suspecting he had checked out cash from the evidence room without returning it. The department then launched an internal investigation and requested a criminal investigation by the FBI.

Bonta’s office alleges that on two separate occasions, Medeles signed approximately $30,000 in cash out of the evidence room. He then falsely stated he was returning the money to the suspects – but instead kept it for himself.

Medeles was fired in June of this year as a result of the investigation, according to a police press release, and was arrested on Thursday.

“Law enforcement officers hold immense authority, and any abuse of that power will be met with decisive action,” said FBI Sacramento Special Agent in Charge Sid Patel in a press release announcing the arrest. “We are committed to working with our partners to hold public servants accountable, and to strengthen public trust and protect our community.”

Medeles is also a defendant in three federal lawsuits that claim he and other officers violated the civil rights of three business owners by allegedly assaulting them and seizing money and business assets. Fresno police deny the allegations and have requested a trial date.

Fresno Police Chief Mindy Casto said she is troubled by Medeles’ alleged embezzlement, citing concerns about their impact on public trust in the police.

“Although this arrest is not a proud moment for me or our department, I want to reassure the public that when we discover serious misconduct, we take swift and decisive action to address it,” Casto said.

Israel Cardona Hernández was born in Santa Rosa, California, and raised in Irapuato, Guanajuato, Mexico. Now based in Fresno, he is a junior at Fresno State, majoring in Mass Communications and Journalism with a focus on Broadcasting. He previously completed two years at Fresno City College and is currently gaining hands-on experience as an intern for the Fall 2025 semester. Fully bilingual in Spanish and English, Israel brings a multicultural perspective to his work in media and communication.
Kerry Klein is an award-winning reporter whose coverage of public health, air pollution, drinking water access and wildfires in the San Joaquin Valley has been featured on NPR, KQED, Science Friday and Kaiser Health News. Her work has earned numerous regional Edward R. Murrow and Golden Mike Awards and has been recognized by the Association of Health Care Journalists and Society of Environmental Journalists. Her podcast Escape From Mammoth Pool was named a podcast “listeners couldn’t get enough of in 2021” by the radio aggregator NPR One.