Here are some additional links to check out career options in Criminal Justice:

Federal Internships

Federal Government Internships - General
Presidential Management Fellows program

National Law Enforcement Job Listings

911hotjobs.com/
lawenforcementjobs.com/
Theblueline.com/
PoliceEmployment.com 
www.golawenforcement.com

Federal Job Opportunities

General Federal Job Search Engines

Criminal Justice jobs
Federal job search.com Jobs
FEDWORLD.GOV Jobs
USA Jobs

Specific Federal Agency Positions

Bureau of Alcohol, Tobacco, and Firearms and Explosive
U.S. Immigration and Customs Enforcement
Census Bureau
Central Intelligence Agency
Department of Homeland Security
Department of the Treasury
Drug Enforcement Agency
Federal Bureau of Investigation
The Federal Judiciary
Internal Revenue Service Careers
National Security Agency
Naval Criminal Investigative Service
Office of the Inspector General
Pentagon Force Protection Agency
Statistical Analysis Centers
Transportation Security Administration
United States Department of Justice
United States Park Police
United States Secret Service

State of Kansas Job Opportunities

Kansas Civil Service Jobs
Kansas Job Link
Kansas Bureau of Investigation
Kansas Highway Patrol
Kansas Department of Corrections
Wichita Police Department
Sedgwick County Sheriff