County lines is the name given to describe drug dealing by criminal gangs from urban areas expanding their activities into smaller towns and rural areas.
It often involves the exploitation of young people and those with disabilities, mental health or addiction problems to transport drugs and money. These gangs establish a base in the location they are targeting, often taking over the homes of local vulnerable and isolated adults by force or coercion in a practice known as 'cuckooing'.
How to report suspicions
Report any suspicions online to Hertfordshire Police or by calling 101.
You can also report suspicions anonymously to Crimestoppers online or by calling 0800 555111.
Always call 999 if you believe that someone is at immediate risk.
Support for concerned parents
If you are a parent or carer and are concerned about a child's involvement in gangs or county lines, there is help and support available in the leaflet below.