From the Center of Excellence in Elder Abuse and Neglect: Bruising in Older Adults–Accidental and Inflicted (LINK HAS BEEN FIXED). This podcast reviews two studies about bruising in the elderly and discusses the all important issue of using color to accurately age bruises.
Part of the work of the Center of Excellence is the Elder Abuse Forensic Center. To read about their finding, check out their report in The Gerontologist here. They also have published a PDF with links to images of physical markers of elder abuse, which you can access here.