The Canada Revenue Agency announced Thursday that charges have been laid in an alleged Disability Tax Credit fraud scheme.

The CRA said that charges have been brought against four individuals and one business in the case, although it didn’t identify the accused.

It said the charges relate to allegations that the directors of a business were working in collaboration with a medical practitioner to generate DTC certificates containing false statements, which allowed claimants to obtain tax credits they were not entitled to, or that were in excess of what they were entitled to under the Income Tax Act.

The DTC is a non-refundable tax credit. To qualify, an individual must have a severe and prolonged mental or physical impairment, as certified by a qualified practitioner.

The CRA says that the federal government is committed to protecting Canadians from financial exploitation, recovering fraudulent benefits, and bringing individuals and companies that encourage exaggerated or false claims to justice.