Error in Title and Related Letter. The letter “[Bipolar Disorder and Violent Crime: Time at Risk Reanalysis]—Reply” by Gibbons et al, published in the December 2010 issue of the Archives (2010;67(12):1326-1327), was not in reply to the letter “Bipolar Disorder and Violent Crime: Time at Risk Reanalysis” by Fazel et al. It was in response to a letter published in the September 2010 issue of the Archives “Antiepileptic Drugs and Suicide Attempts in Patients With Bipolar Disorder” by Mentari et al. The Gibbons et al letter was corrected online.