On Tues. April 22nd from 5 p.m.- 7 p.m. and Wed. April 23rd from 9 a.m.- 4 p.m., the seventh annual CSI Symposium at Norwich University presents experts in the field of crime scene investigation and technology. The two days of presentations will include nine different speakers on topics ranging from crash reconstruction and mobile device inspections to social media for crime prevention. Hosted on the Norwich campus, this event is free and open to the public.