The Minister of State with special responsibility for the national drugs strategy has said people "need to grow up" about  the issue of drugs.

Aodhán Ó Ríordáin, who was appointed to the position of minister with responsibility for drugs strategy two weeks ago, made the comments at the Better City for All seminar where he also said he is in favour of setting up an injection centre for addicts in Dublin.

Mr Ó Ríordáin said setting up medically-supervised injection centres would take the drug problem out of the city's side alleys.

He said if it is accepted that drug addiction is a medical issue then those involved need to be afforded some dignity.

The Ana Liffey Drug Treatment centre is working on legislative proposals to set up such a facility and the idea of a mobile unit is also being considered.

Mr Ó Riordáin said he is working on a new Misuse of Drugs Bill that could allow the facility to be introduced.

He was speaking at a seminar of the Better City For All group made up of treatment and homeless groups, city businesses, gardaí and the city council, which aims to tackle anti-social behaviour.