In her first heist, the woman sauntered into a Wells Fargo branch bank in Brooklyn Center and slid a note to the teller, police said.
Scribbled on an envelope, the note warned: "I am armed. This is a robbery. Give me the cash. Don't press anything."
Police say that woman was Melanie Sue Carey, 39, of Brooklyn Park, and that she fled that day with about $865 in cash.
Investigators believe that Carey was responsible for at least two bank robberies in the Twin Cities and that she had attempted a third shortly before she was arrested.
She has been charged with two counts of second-degree robbery and one count of attempted second-degree robbery, all felonies.
On May 5, police were tracking Carey's vehicle and cellphone when, authorities say, she attempted her third caper at a TCF Bank in Robbinsdale. She left without getting any money, worried that the teller had activated a silent alarm, according to a criminal complaint filed in Hennepin County District Court. She was caught a short time later.
According to the charges against Carey:
The first robbery occurred April 19 at the Wells Fargo in Brooklyn Center. Dressed in an oversized sweater, fishing hat and sunglasses, Carey claimed she was armed, but never flashed a weapon. She made off with a bounty of small bills totaling less than $1,000.