A Fianna Fáil candidate could face a jail term or hefty fine as one her posters breached election rules by being erected too close to a Dublin polling station.
A poster for Catherine Ardagh, daughter of Dail TD Sean Ardagh, was on a lamp-post within feet of the entrance to the Model School in Inchicore.
The Electoral Act bans posters or canvassers within 50 metres of polling stations during hours of voting.
Offenders are each liable to a €1,300 fine or six months in prison.
The use of loudspeakers or any public address system is also prohibited.
A Department of Environment spokesman said a garda is on duty at each polling station and it was up to them to enforce the legislation.
Dublin Registrar John Fitzpatrick said political parties should be fully aware of the rules on the issue.
“You can be very sure they know about the rules,” he said.
Mr Fitzpatrick said there have been no prosecutions in Dublin under the legislation but plenty of complaints.
“It is something that crops up again and again on our helplines,” he added.
Under the electoral legislation, all posters must be taken down within seven days.