ROCK HILL — A Rock Hill mother was behind bars Friday after a local attorney told police she found the woman’s children riding bicycles in front of her law office and in traffic without supervision.

Samantha Stephanie Green, 28, is charged with cruelty to children, according to a Rock Hill Police report. She left jail Saturday on a $470 bond.

The lawyer told police that she saw the boys, ages 5 and 8, riding their bikes in front of her Saluda Street law office and then the weaved in and out of traffic, the report states. She took them to their Green Street home and spoke with the boys’ grandmother, 57, who said she was watching her grandchildren when she went to the bathroom.

The grandmother began fidgeting during the police interview, officials said, before saying she was watching her grandsons for her daughter, who was at work. Minutes later, her daughter, Green, walked out of the bedroom with a 26-year-old man.

Green said she is unemployed and recovering from a recent surgery. She was napping, she said, because she took a muscle relaxer. She said she left her children in her mother’s care, although her mother suffers from a medical condition and “bouts of disorientation,” the report states.

One of the children said he left the house to run after his brother, who Green said suffers from behavioral problems. Police overheard Green tell her son that if she went to jail, it would be his fault. They also saw her pull his hair to discipline him.

Police found previous neglect cases against Green in their records, and realized that Green knew of her mother’s condition. Police placed Green under arrest. While searching for a family member to leave the children with, Green continued to berate her children, the report states. The department of social services determined that Green’s sister would be able to take custody of the children.