The police outfit came into the game after losing two games in a row but managed to snatch the vital three points to move away from the relegation zone.
The defeat left Bakau United second place from bottom as well as hoping to recover in their next fixtures to boost their chances of staying in the top flight next season and avoid relegation to the second division.
Wallidan drew 2-2 with Gamtel at the Brikama Box Bar Mini Stadium, while Banjul United also drew 2-2 with Real De Banjul at the Banjul KG5 Mini Stadium on the same day.
Gamtel are still leading the league table with 26 points in fourteen games.
Real De Banjul FC are second with 24 points in twelve with two games in hand. Banjul United are third with 22 points.
Wallidan are with 13 points in fourteen games; Interior are with 11 points in fourteen games and Bakau United are second place from bottom with 9 points in thirteen games with a game in hand.