A try from fly-half Jonathan Sexton - and another Leigh Halfpenny conversion - put the Lions clear again heading into the final quarter.
Sexton touched down after receiving the final pass from Halfpenny in a slick Lions move in the left corner.
Australia had closed the gap to just three points early in the second half through two Christian Leali'ifano penalties.
Halfpenny added another penalty of his own.
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Callum Williams of Wrexham pleaded guilty to causing grievous bodily harm to the woman police officer, assault and damaging property.
RSPCA says at first they thought the caller had confused the animal with a badger.
Welcome to the Newsweek Quiz - where we'll be testing your knowledge from the last seven days of news in Wales.