The Safer Caerphilly Community Safety Partnership is a cracking down on adults who buy alcohol on behalf of under 18s.
Caerphilly County Borough Council’s Trading Standards and Gwent Police are running the ‘proxy purchasing’ campaign.
It aims to inform and educate people that it is illegal to purchase alcohol on behalf of under 18s, and there are severe penalties for those that do so.
A study conducted for The Portman Group, which promotes responsible drinking, found that almost a third of adults questioned had been asked to buy alcohol on behalf of someone underage.
Of those who had been asked, more than a third admitted to buying alcohol for someone under 18.
The survey also found one in four adults who admitted to buying alcohol for someone under 18 said they did not know it was an offence and almost seven out of ten people questioned said they did not know you could receive an £80 fine for buying alcohol for someone under the age of 18.
Cllr Lyn Ackerman, cabinet member for the environment said: “Tackling proxy purchasing of alcohol is vital if we are to stop alcohol getting into the hands of youngsters.
The vast majority of licence holders in our county borough strictly uphold their legal responsibilities to prevent the sale of alcohol to children.
“Young people now appear increasingly to go about getting alcohol by other means, such as by proxy purchase, where a young person may approach an adult outside a shop and ask them to go and buy some alcohol for them.”
Caerphilly Partnership Inspector Alan Webber, said: “When we confiscate alcohol from under 18s, they often tell us that an adult has supplied them with it.
“By educating adults of the legal implications of supplying under 18s with alcohol, we hope that they will act responsibly.”