Like many others in the forensic field, I stumbled into this career: I had an undergraduate degree in chemistry, but found I was not at all happy with the PhD program I'd begun. I was looking for a practical way to use my degree, but I wanted to see tangible, immediate results. Forensics fit the bill perfectly.
I spent three year as a forensic drug analyst, then move to forensic DNA analysis where I've been for the past six years. I've moved my way up the management ladder, more than doubling my salary since I began in 1999. While I may never get rich working for police agencies, and while I may have to put up with the bureaucratic nonsense every government employee has to deal with, I truly love my job. I see something new come in the door every day, I have plenty of opportunity to try new technology and new techniques, and I most certainly see the results of my work every time I step into the courtroom to testify as an expert witness.
Two years ago I completed an MS, which helped me move to another agency despite a highly competitive job market. If you're interested in forensics, do NOT major in forensic science. Instead, concentrate on getting as broad of a hard science background as possible: major in chemistry, biology, or biochemistry. A strong science background is the most important tool you'll need in this field.