Graham Dwyer has won a key battle against his murder conviction.
It's after the state lost a bid to have the murderer's compensation case for breach of privacy, thrown out.
Graham Dwyer is taking a case against the state claiming gardai breached his privacy rights by accessing his mobile phone records.
The texts were a major part of the evidence that saw him convicted of the murder of childcare worker Elaine O'Hara.
According to the Irish Daily Star, the state applied to the High Court to have the case thrown out, but it was rejected.
Dwyer could get thousands of euro in compensation if he wins his case, but it would also likely influence the success of his murder appeal, which is also underway.
The civil case is scheduled for another mention in the High Court next month.