Ireland's third victory from three matches this season maintains their push for the Grand Slam and also rubber-stamped their qualification for the 2014 Women's Rugby World Cup.

Scotland, who had failed to score a point in their opening two defeats to England and Italy, did take the lead at Lasswade - centre Lisa Ritchie kicking the hosts ahead with an early penalty.

But back came Ireland and impressive full-back Niamh Briggs leveled things up on 23 minutes before the first try of the match arrived - Miller, who scored a hat-trick against England - finishing off a sweeping move in the corner.

Scotland refused to wilt however and exerted considerable pressure on Ireland in the closing stages of the first half - only for a crucial turnover from Ashleigh Baxter to ensure that the visitors held on for an 8-3 lead at the break.

Still the Irish didn't having things their own way in the second half and continued errors saw Scotland grow in confidence.

But when Briggs landed a penalty after Scotland fly-half Tanya Griffith was sin-binned for persistent infringements, Ireland settled back into their stride and the floodgates duly opened.

Miller was the tormentor-in-chief again, clinically finishing off her fifth try in two matches, which Briggs converted before flanker Siobhan Fleming scored try number three for Ireland.

Briggs rounded off a fine individual performance with a try of her own but hit the upright with her conversion attempt, ending up with a personal haul of 15 points, securing Ireland their first ever Triple Crown.

Victory also means that Ireland, who host France next, are just two wins away from their maiden RBS 6 Nations Grand Slam.