A blustery wind made life difficult for the Beavers but the Police couldn't make use of it and clearcut chances were few and far between.
Early on, Sutherland's header was the nearest either team could call a chance but it was well wide.
With 20 minutes played, Nicke Kabamba looked to have found enough space to break from midfield, but his shot from the edge of the box dribbled wide.
On the half hour, Josh Casey's free kick was flicked on off a Police head and it just evaded the late arriving Moussa Diarra at the back post.
3 minutes later, the Beavers managed to get a chance on target and it was enough to take the lead.
Jerome Federico was giving the left back a hard time and his cross was met at the near post by Nicke Kabamba, whose neat deflection came off a Police body and flew over King in the Police goal and into the top corner.
In the second half, Hampton looked more settled and with just 5 minutes played, managed to increase the lead.
Federico was once again tormenting the left back and this time, Treacher had to resort to blocking Federico off in the box and sending him tumbling to the floor.
Dean Sinclair stepped up and struck the penalty well, but King was equal to it and saved the shot, but Sinclair followed up the rebound and lashed it into the net, the keeper helpless.
Federico tried to take advantage of further space 60 sconds later but his flicked attempt from the angle of the box went straight into King's hands.
Police were finding it hard to get a sight of Mark Smith in the Beavers goal and although Bartley headed over with 15 minutes to go, it wasn't until the 83rd before Smith had a chance to save a shot, one from former Beaver Joe Turner, which was straight at him.
60 seconds later, the Beavers wrapped up the afternoon with an amazing finish from Jamal Lowe.
Lowe cut in from the left hand side onto the edge of the area, and to all appearances, there was no danger to the Police goal. But his precise curling shot appeared to catch the defence and keeper off guard; the ball flying into the corner of the net past King's left hand with all in blue shirts looking on in bewilderment.
Metropolitan Police: 1 Craig King, 2 Will Salmon, 3 Ollie Treacher, 4 Billy Crook (Tom Hickey 54'), 5 Steve Sutherland, 6 Rob Bartley, 7 Charlie Collins, 8 Nathan Campbell, 9 Leon Smith, 10 Ryan James (Andre daCosta 54'), 11 Joe Turner
Subs: 12 Elliot Taylor, 17 Jay Lovett, 14 Tom Hickey, 15 Neil Barrett, 16 Andre daCosta
Hampton & Richmond Borough: 1 Mark Smith, 2 Tom Jelley, 3 Josh Casey, 4 Kieran Murphy, 5 Moussa Diarra, 6 Harry Taylor, 7 Jerome Federico, 8 Dean Sinclair, 9 Nicke Kabamba, 10 Brendan Kiernan, 11 Jamal Lowe
Subs: 12 Charlie Moone, 14 Shaquille Hippolyte-Patrick, 15 Michael Kamara, 16 Eddie Hutchinson, 17 Joe Hicks.
# | Team | Pl | Pts |
1. | Hampton & Richmond Borough | 46 | 95 |
2. | Bognor Regis Town | 46 | 94 |
3. | East Thurrock United | 46 | 91 |
4. | Tonbridge Angels | 46 | 85 |
5. | Dulwich Hamlet | 46 | 81 |
6. | Enfield Town | 46 | 80 |
7. | Kingstonian | 46 | 73 |