The law enforcement and security sector is highly diverse and being able to demonstrate that you have relevant work experience will be a great advantage. Building up your experience of working with people from different backgrounds will be valuable, as will being able to demonstrate leadership skills.
You can begin building your skills and experience at university by volunteering, doing an internship, having a part-time job or by doing a professional placement.
Use the Brighton & Hove Community & Voluntary Sector Directory for an A-Z list of local organisations. You can also use the Community Base Volunteer Search page to search for opportunities by what you want to do and who you want to work with: