The North's first ever nationalist First Minister, Michelle O Neill is going to a PSNI graduation ceremony today.
It'll be a first for Sinn Fein - which has previously turned down similar invites.
Efforts have been made over the years to boost Catholic representation in the PSNI.
The move will be regarded as a significant gesture, as well as a demonstration of Michelle O'Neill's intention to be a First Minister for all.
The party's Gerry Kelly, who sits on the Policing Board, is also attending.