ASHLAND — Police were warning people to inspect $20 bills carefully after counterfeit twenties were passed at three Ashland businesses Tuesday and Wednesday.

ASHLAND — Police were warning people to inspect $20 bills carefully after counterfeit twenties were passed at three Ashland businesses Tuesday and Wednesday.

The fake bills were passed at 7-Eleven and Case Coffee, both in the 1200 block of Siskiyou Boulevard, and at the Chevron station at 2500 Ashland St., police said.

"It's possible that it may be the same person in these two days, but there's nothing to indicate that it's the same person," said Sgt. Jim Alderman with the Ashland Police Department.

"Anybody with a good color printer can produce this stuff," he said.

The Ashland Police Department has received nine reports of counterfeit bills being passed since April. In July, a bogus twenty surfaced at Yogurt Hut downtown.

Police encouraged businesses to use verification tools, such as counterfeit detection pens or machines, on bills with denominations of $20 and higher.

When counterfeit and authentic bills are compared side by side, their differences in paper and ink are easier to spot, Alderman said. Also, fake bills don't have metallic identification strips inside them like authentic bills, he said.

People who think they have received a fake bill should note the time and the description of the person who tried to pass the bill and call police, Alderman said.

Detectives have no suspects or leads in any of the counterfeit cases, he said.

"I'd love to tell you it's a ring or something doing this, but I don't believe it is," he said. "I think it's just random. You know, 'Going to the store, print up a twenty.' "

The Ashland Police Department is asking anyone with information about the counterfeit bills to call its Investigations Division at 482-5211.

Hannah Guzik is a reporter for the Ashland Daily Tidings. Reach her at 482-3456 ext. 226 or hguzik@dailytidings.com.