It helps to have at least two years of specialized training or associate degrees in applied science or science-related technology. The more professionally ambitious aspiring forensic scientists should get bachelor's degrees in chemistry, biology or forensic science. Two-year programs that combine theory and practice: coursework and lab training. In addition to book learning, it's important to be a competent communicator for those many days in court testifying about evidence. Also, you should have an eagle eye for detail (remember those hair fibers?) and a knack for interpreting scientific evidence.