WASHINGTON ( 25News Now ) - Washington Police have arrested a woman after a thorough and lengthy investigation into alleged child sex crimes.

Robyn Polston, 43, of Washington, was arrested on preliminary charges of criminal sexual assault and child pornography after a comprehensive review of evidence made up of several search warrants, key witness interviews and collected biological and digital evidence, police said.

Police began investigating after a complaint alleging Polston had engaged in a sexual relationship with a minor.

The department said they will not comment further at the time. They also appreciated the public’s assistance and respect for the victim, victim’s family and minors involved in this case.

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