Some 11,000 Gardaí are operating a "withdrawal of goodwill" in protest over public sector pay cuts and the pension levy.
The Garda Representative Association said its members will refuse to use their own mobile phones, laptops and cameras in the course of their professional duties.
A spokesperson for the Department of Justice directed all questions about the action to the Garda Press Office. Meanwhile, a Garda Press Office spokesman said "An Garda Siochána continues to provide a full policing service to the community. continues to provide a full policing service to the community."
Last December, the GRA agreed to survey its members on protesting about the reduction in their pay rather than hold a trade union-style ballot for industrial action.
Representatives of the GRA will attend discussions on pay which resume today under the chairmanship of facilitator Kieran Mulvey, of the Labour Relations Commission.
The GRA had announced on December 7th its plans to hold the ballot, a move seen as highly controversial because gardaí take an oath of loyalty to the State and are banned from striking.
Gardaí are also banned from joining a trade union and the GRA was not directly involved in recent talks on public sector savings.
Under the Garda Siochána Act 2005 it is a criminal offence for a member of the force to withdraw their labour or to induce anybody to withdraw their labour.
On conviction the offence carries a penalty of up to five years in jail and/or a fine of up to €50,000.