you should always act.  You can do this in a number of ways by:

• asking the police to protect the person or call an ambulance to treat them, if they are in immediate danger;
• talking to Social Care Services or the Police - use the numbers below;
• making a note of your concerns, what has happened, and any action you have taken

Call Social Care Services:

• between 8am and 8pm Monday to Saturday 0845 045 5202
• or outside these hours, if it is an emergency, call 01733 234724
  

To contact the Police: 

• Cambridgeshire 0845 456 4564