A cold case is an investigation that has gone unsolved after more than a year; initial efforts did not yield enough evidence to identify or arrest a suspect, or to come to any definitive conclusions. Cold case investigators re-open these cases to bring a fresh perspective to the collected evidence or when new evidence has surfaced. In this role, you review forensic data that has already been collected and look at witness statements and incident reports received at the time. When possible, you may also go back to the crime scene to try to visualize what may have happened and interview witnesses or previous investigators again to find new leads. Your goal is to move the case forward towards a conclusion and a conviction when possible.