A dominant first half performance from Bonnyrigg secured all three points against Spartans with a first half hat-trick from trialist Scott which proved enough on the day.
A spirited and better second half performance from Spartans did not let the home side have it all their own way and if not for some great saves from the Bonnyrigg keeper it may have been a different scoreline at full time.
The home side got the game underway at King George V Park and the first chance came three minutes in when after a good run down the right Jack Clelland cut inside but his shot from eight yards out was blocked by Mateusz Lenart in the Spartans goal.
Daniel Maposa created the first chance for the visitors with a delightful ball over the top but Kadin Boak was quick of his line to collect before Alex McLaughlan could reach it.
Clelland was causing problems down the right side and he was off again on his travels and played a nice ball into Sean Hancock but his goal bound shot was deflected over the bar by Josh Wood.
The resulting corner was cleared as far as Jay Scott but his effort was blocked and Spartans cleared their lines.
Bonnyrigg were in control and opened the scoring on eleven minutes after Scott picked up the ball outside the box and from the right side drove into the box, rounded the keeper and found the far corner from close range.
The home side doubled their lead only a minute later when they won the ball from the restart and Scott was found on the right again and he like his first goal drove into the box and fired home with a fine finish to leave Lenart with no chance.
Spartans even though two down still stuck to their remit of playing nice give and goes and passing the ball even though it would have been easy to just look to play the long ball.
Clelland was on his bike again for the home side but Josh Wood was on hand to mop up but was on the end of a rather rash tackle after the ball hand been cleared.
Bonnyrigg created another few chances through Clelland firstly when he played a good ball into the box but Eosaph Caimbeul reacted quickly to clear and then Lenart came to Spartans rescue when he bravely saved at Clelland's feet and then from the left this time Clelland saw his strike go just wide of the upright.
Spartans first real chance came when Liam Clark played in McLaughlan but his firm shot was well saved by Boak.
With five minute remaining in the half Bonnyrigg increased their lead when Scott claimed his hat-trick with a great finish as he drew out Lenart in the opposition goal and played a deft little dink over him from eight yards out to put Bonnyrigg in charge going into half time.