You really need some law enforcement experience to be competitive. DEA, while occasionally hiring people without military or law enforcement experience, really prefers it.
Even better, is an investigative law enforcement job somewhere, non drug related.
The gold standard would be a guy with good grades, who pulled a hitch in the military, who then went to work for a state narcotics agency, or who was assigned to the narcotics unit of a police or sheriff's department.
Here is the actual back grounds of several DEA agents I know. All have
college degrees (your major is usually not a significant factor).
State Game and Fish
State Bureau of Narcotics
DEA
Navy (basic swabbie stuff)
Local police department, later tranferred to narcotics
DEA TFO (Task Force Officer assigned to DEA by their department).
DEA
Army (intelligence)
DEA
(two guys with this exact background).
NCIS (civilian working for the Navy)
DEA
Navy (SEAL)
(somewhere else)
DEA
Army (Special Forces)
Local Police Department (Patrol)
DEA
Army (Ranger Battalion)
DEA
State Bureau of Narcotics
DEA TFO
DEA
(I actually know about five or six guys well with this background)
Air Force (enlisted with a Master's
Degree)
DEA
Air Force (para-rescue jumper guy)
DEA
Large, well known, police department (patrol).
DEA
State Bureau of Narcotics
DEA
(Again, I know lots of guys with this background.)
Local Police Department (patrol)
DEA
State Highway Patrol
DEA
(3 guys with this exact background from the same agency that has a really good reputation)
U.S. Secret Service (uniformed)
NCIS
DEA
U.S.Secret Service (1811)
DEA
Local Sheriff's Department
USMS (1811)
DEA
Border Patrol
DEA
(Thanks, Redman).
Like I said, these examples have no significance except that they are people I actually know well who work for DEA as agents (and I kept editing it as I though of more people and their backgrounds)..
I also know about ten people who were hired straight out of
college for DEA. Seven are absolutely worthless. Three are really switched on and good investigators. And, that's the problem with hiring people with no work history. You are really buying a pig in a poke, and most large federal agencies know this, and have enough applicants that they don't have to do that very often.