If you are worried about an adult and believe that adult is in immediate danger, you must contact the police on 999.
For other concerns, please follow the links below to report your concerns about an adult. You do not need to know for certain that the adult is being abused. If you have concerns, you should report them to the relevant Adult Services department. You can contact them and ask them, on the basis of the information you are giving, whether they advise that you make a formal referral. It is very helpful for them if you have as much information as possible to help them identify the person you are talking about: first and last name, date-of-birth if you have it, and their address if possible.
The phone number to call if you are worried about an adult in Brighton and Hove is 01273 295 555 (office hours and out-of-hours). The website giving more information about how to refer to concerns and what help might be offered is available here.
The phone number to call if you are worried about an adult in West Sussex is 01243 642 121 (office and out-of-hours). The website giving more information about how to refer to concerns and what help might be offered is here.
The phone number to call if you are worried about an adult in East Sussex is 0345 60 80 191 (8am to 8pm). The website giving more information about how to refer concerns and what help might be offered is here.