What are the main aspects of being a forensic technician?

I think that a specialty should be what one feels most passionate about. So if there is an aspect that you seem to enjoy more than others focus on that one. I found that while I like all aspects of the discipline, I tended to enjoy ballistics and cell phone forensics more than some of the others.

A forensic science job description may appear distinctly different depending on the area of forensic science being practiced. This is because forensic science is a rather broad field and thus encompasses a number of specialties, all of which are rooted in the natural sciences.

Forensic science work generally involves one or more areas of science:

Chemistry: Involves the study of paint, chemicals, and similar substances and compounds
Biology: Involves trace and DNA evidence, including blood, hair, fibers, etc.
Drugs/toxicology: Involves testing for the presence or absence of drugs, alcohol and poisons in blood, urine, and tissues samples
It may also involve specific subspecialties of forensic science, such as botany, anthropology, and odontology (dentistry).

A forensic scientist may therefore take on one or more of the following forensic science jobs:

Criminalist
Forensic toxicologist
Forensic pathologist
Forensic anthropologist
Forensic odontologist
Forensic botanist
Forensic biologist
Forensic chemist
Questioned documents examiner
Fingerprint examiner
DNA analyst
Trace evidence analyst
Medical examiner