Crime scene investigators are dealing directly with the most highly classified information of all cases. Background personal checks of criminal records are crucial. Felony is a serious grave crime. A felony conviction can be deleterious when obtaining a career in criminal justice system. As far as I know, tables are most often turned against an applicant with a criminal record especially of felony, but there are exceptions.
I think there is still hope because some agencies might want to consider cases like this, but unfortunately of very least chances. However, you can still go on with your life. Search for other jobs or activities that you may find interesting and different. You may like it better than becoming a crime scene investigator.
You can get a provisional pardon and from there get a full expungement and full pardon so yes there is hope write to every congressmen and senator and tell them why they should consider you as a candadite
If it is a state charge then go to the governors office to get the paper work, if on a federal level charge you can also get it online at the department of Justice website to fill in yourself and submit it. Both sites will give you detailed instructions on how, where, whom to send to. Hope this helps. And I say follow your dreams because until death there is always a chance. I know from experience
I have a felony and two misdemeanors the felony was 13 years ago and it was withheld ajudicated what do i have to do to get a pardon cuz this has been my dream since i was a kid to be a forensic anylist. And i dobt wanna go 4 years to be told no