A Dorchester man already convicted of sex offenses against children was sentenced to up to five years in prison yesterday following his conviction for enticing a young girl on her way to school, Suffolk County District Attorney Daniel F. Conley said.

A Suffolk Superior Court jury last week convicted LEE C. BROWN (D.O.B. 7/7/52) of child enticement and annoying or accosting a person of the opposite sex. Yesterday, Judge Raymond Brassard sentenced him to a term of four to five years in state prison to be followed by 10 years of probation upon his release. The enticement charge carries a maximum of five years in prison.

Assistant District Attorney Laura Montgomery of Conley’s Child Protection Unit proved that Brown was a routine fixture at a Dorchester Avenue school bus stop in 2009, when the victim would see him as she went to school. On Sept. 4 of that year, the first day of eighth grade for the girl, Brown handed her a note.

The note indicated that Brown found the 13-year-old girl physically attractive and that he wanted to talk to her. The note contained his phone number and the instruction that she not tell anyone about it.

“I shudder to think what could have happened to that child if she hadn’t told her mother,” Conley said. “At community meetings and crime watch groups, we tell parents to stay involved in their kids’ lives and this is exactly why.”

After school on the same day, the girl showed the note to her mother and the two of them reported the incident to the police. Boston Police detectives accompanied the girl to the bus stop a few days later. Brown was there and the girl identified him.

Brown soon admitted that he had written the note and he was taken into custody. At booking, police found a second note in his pocket. It indicated that he had wanted to talk to the girl for more than a year and that he liked her because she is “so beautiful.”

At the time of the incident, Brown had just completed probation after an 18-month jail term for a 2006 indecent assault and battery on a child conviction. He also had a conviction for a similar offense out of Arkansas.

Philip Harrison was the DA’s assigned victim-witness advocate. Brown was represented by attorney Kim Giampetro.