PEKIN — A rural East Peoria man could go to prison for decades if he’s convicted of preying on two minor girls for sex over three years.

Levi Robertson, 38, was indicted by a Tazewell County grand jury last month on four counts each of predatory criminal sex assault of a child and criminal sexual assault. He’s also charged with two counts of aggravated criminal sexual abuse in a separate but related case.

In the first case, Robertson allegedly began sexual contact with the victim when she was 12, according to a prosecutor’s court affidavit. His actions in both cases began in 2015, the affidavit stated.

The crimes ended last August when a relative of the two girls contacted police, the affidavit stated.

Robertson was arrested in December after police obtained and investigated a cellphone that contained sexually explicit text messages sent to one of the girls, the affidavit stated.

The predatory assault charges — the most serious — are nonprobationable felonies carrying maximum 60-year prison terms.

Robertson remains in custody on $300,000 bond pending his next court appearance, set for March 4.