South Yorkshire Police and Crime Commissioner, Dr Alan Billings, has turned to Twitter to warn of the dangers of legal highs.
He has also drafted in players from Sheffield United, Sheffield Wednesday, Barnsley FC, Doncaster Rovers, Rotherham United and Doncaster Rovers Belles, along with the Sheffield Steelers ice hockey team, to promote the new campaign.
They will be pictured displaying up to 11 key messages.
Dr Billings said: “As I have met local community groups, local policing teams, MPs, councillors, medical professionals, teachers and many members of the public, across the county, I have been repeatedly told about concerns and anxieties about the growing use of legal highs.
“Young people in particular are taking them with very little idea about what they are or what the possible consequences might be not just for their health and well-being - though that is serious in itself - but also for their future prospects.
“They may be legal but that is not the same as saying they are safe.
“The principal issue is that no one who takes them has any idea what might be in them.
Legal highs are a compound of substances manufactured to mimic the effects of known illegal drugs such as cannabis, cocaine and heroin.