The Taoiseach is due to be presented with a dossier containing 200 new claims of Garda misconduct.

The Mail on Sunday reports that the new claims include an investigation that could have prevented a murder, sexual assaults that weren't properly investigated and drugs and dangerous driving offences.

The paper says a new female Garda whistleblower has also emerged, with documentation of even more claims.

The paper's Political Editor John Lee, says the claims in the dossier have been known to authorities.