Wheat Ridge police have arrested a woman who allegedly stabbed herself and her toddler in an attempt to frame a man she knew.

Stephany Mary Harwood, 21, was arrested Friday in connection with the incident which happened Aug. 22 along the greenbelt path near 48th Avenue and Otis Street in Wheat Ridge.

Harwood reported to police that she and her child had been stabbed by someone while they were walking the trail.

The trail is a popular spot for joggers. An elderly couple spotted the mother and son within minutes of the attack and assisted them, police said.

After the attack, detectives looked for Marvin Gean Wilson, 44, whom Harwood identified as the suspect.

Harwood was a witness in a case against Wilson, police said.

Harwood told police a man she identified as Wilson jumped from the bushes, chased her and then stabbed her and the child, resulting in cuts to her legs and puncture wounds to boy’s abdomen.

Harwood was arrested Friday on charges of child abuse resulting in serious bodily injury, police said.

Harwood is currently being held at the Jefferson County Detention Center on a $100,000 bond, police said.

Wilson is a sex offender and has a warrant for his arrest for failing to register that dates to 2008, according to court records.

Ryan Parker: 303-954-2409, rparker@denverpost.com or twitter.com/ryanparkerdp