The jury trial for a Casper resident charged with sexually assaulting a 10-year-old girl began Monday.

Miguel Martinez faces one count of first-degree sexual abuse of a minor and one count of second-degree sexual abuse of a minor. If found guilty, Martinez could face up to 70 years in prison.

Martinez’s public defender, Tracy Hucke, said at a previous hearing that her client identifies as a woman and uses the name Michelle.

The 10-year-old’s mother reported to Casper police in March that her daughter said Martinez sexually assaulted her in a bathroom in a private residence.

The girl said Martinez, who is a family friend, invited her into the bathroom, touched her breasts and genitalia before penetrating her. Nurses at the Wyoming Medical Center completed a sexual assault exam and found redness and abrasions on the girl’s genitalia.

Martinez denied molesting the child to arresting officers and pleaded not guilty to the charges in May at an arraignment in Natrona County District Court.

The trial is scheduled to last four days.