Working in the security industry, it is often necessary to use security dogs. They help to give a security guard more authority, and they can also be used for other functions, such as detecting bombs or illegal substances.
Many people with security experience decide to move into the field of security dog handling. It can be very rewarding and gives you another angle for your security career. It is also very rewarding to work with animals if you think this is something you would enjoy.
Sometimes, you will be expected to have your own trained security dog and take it with you to events. This would involve working on a self employed basis. When you are training, it is more viable to work for a private security agency, or to work in the police. This will give you more experience of handling and working with security dogs, giving you the experience you need.