Royal Greenwich Local Drug Information System (LDIS)

The Local Drug Information System (LDIS) is a public health initiative that helps us respond to drug-related risks in the borough. 

You can use this service to tell us about drug-related incidents that have happened in your area. 

Your reports help us monitor emerging threats, send timely alerts, and protect residents from serious harm. 

By sharing what you see or hear, you help: 

  • reduce harm in the community
  • alert health teams to contaminated or unusually strong drugs
  • prevent further overdoses and save lives 

You can choose to tell us anonymously. You do not need to provide your contact or personal detail.  

What you can report 

You can tell us about drug-related incidents like: 

  • unexpected reactions to drug use for example, seizures, unconsciousness, intense sedation
  • suspected overdoses involving unfamiliar or strong drugs
  • unusual drug packaging or appearance
  • new or unknown pills, powders, liquids, or vape refills
  • any ongoing concerns 

How to report a drug related incident 

You can tell us about a drug-related incident online. Include as much detail as possible, like: 

  • the type of drug (if known)
  • where it was used or bought from
  • the effects or symptoms observed
  • if the incident led to hospitalisation 

What happens after you report a drug related incident 

We assess the report for urgency and public health risk within 24 hours of receiving it. 

If needed, we’ll send alerts to local services or escalate the incident to regional or national health teams.