The controversy occurred in the 77th minute , when Hearts ' Mehdi Taouil conceded a foul -- .
The controversy was booked for his cynical challenge on Tom Taiwo -- and the free - kick was struck from 30 yards by Leigh Griffiths .
The controversy occurred in the 77th minute , when Hearts ' Mehdi Taouil conceded a foul -- and was booked for his cynical challenge on Tom Taiwo -- and the free - kick was struck from 30 yards by Leigh Griffiths .