Computer Forensics is a growing field. There are other certifications available, the Certified Cyber Forensics Professional is a comprehensive test. It covers concepts, laws, techniques, everything a cyber investigator should know.  Chuck Easttoms 'All in One CCFP' from McGraw Hill is the best way to study for this exam.  You can also get that book direct from McGraw Hill here.  


 You can also contact Chuck Easttom about his forensics services here.