The chief executive of the new Charities Regulation Authority has said the body has been given extensive powers to investigate the activities of registered charities.
Úna Ní Dhubhghaill said if the authority has reason to believe that a charity is not complying with their obligations, it can request that the charity provides information relating to their activity so that it can determine if there is a problem.
Speaking on RTÉ's News at One, she said: "If we have reason to believe that there is problem in a charity, that they're not complying with their obligations we have a full range of means to deal with this.
"We can require the charity to provide us with whatever information, books of accounts, documents, that we need to determines if there is a problem."
When new charities register with the regulator, they will be asked to provide details of how they plan to fundraise.
The charities will also be expected to provide detailed activity reports and accounts.
Ms Ní Dhubhghaill added that the authority will be limited under the 1962 House to House Collection Act in relation to investigating fundraising.