Homeland security training consists of many different opportunities and levels of training. Here is a site that offers answers to MANY frequently asked questions: http://www.secretservice.gov/faq.shtml
There are colleges that offer homeland security training courses. Savannah State University, Virginia Commonwealth Universit and University of Massachusetts-Lowell offers courses.
Most local community colleges offer security training in Phoenix. Many security companies offer their own training also.
Concord Security offer training courses for security guards through their Certified Security Training Centre. They also offer Mobile Patrol and Alarm Response Services.
It would be advised to go to the government center or their website and see what qualifications and schooling the state requires to be able to work in the field. The people that work at the local government buildings should be able to give you more detailed information.
Active Security is a training center located in Harbor City. They offer classes in training one for security purposes. For example, there is a class on training on the proper use of a taser.
All Access Security Training Center offers training in all aspects of the security guard business. They offer courses such as how to handle tear gas and mace.
There are several community colleges in Rhode Island. Most of these schools do offer security guard training.
Many security jobs offer on the job training. You can also find on the job training in many call center customer service positions.
PTC Security Training Academy offers 40 hour armed training for PERC.
Police training is usually a state, city or federal run program and not usually offered by companies. Security guard training may be privately offered but not police officer training.
This will depend on where you are located in the US. There are schools that offer security training all ovr the country. I would suggest that you begin you search at: www.computer-schools.info/.
You can take homeland security classes at college or university near your location. Specialized homeland security schools currently offer courses ranging from intensive four-week workshops to two-year degree programs that include topics in weapons of mass destruction (WMD), terrorism awareness and detection, casualty incident training, decontamination techniques, and electronic surveillance.