Close Protection Agents, bodyguards, and private security contractors are all basically the same thing and just vary on the clients specific needs. A good example of this would be to highlight the difference between a close protection officer and a bodyguard.
A bodyguard would be the physical presence that would be seen in the public eye right beside their client which would be a high-profile celebrity. The bodyguard would make sure that their client is not harmed and that their client is not bothered by journalists and fans.
A close protection officer would not really be seen in the public eye but would still have a similar role to the bodyguard in terms of keeping the client safe at all times. A close protection officer would plan the routes of transportation and always make sure that they have a back-up plan.
So basically a bodyguard would work with a high-profile celebrity and a close protection officer would probably be looking after a politician.
