The answer is simple, If you run an MOT test station and get your pass rates above the average for the area you are likely to get a visit from the "Mystery Shopper" who will check you out secretly. So if you fail the car on a bulb and replace then you pass it you keep your fail rate up with no cost to your business (they do not have to repeat the whole test) or the customer. Everybody will be happy. If VOSA suspect the integrity of a test station they will stop and check the cars leaving. If they find cars that have been passed either dishonestly or because they have not been tested correctly they can revoke the MOT license. The main thing is that you have passed!!
2006 1.8 Petrol Ghia Silver
Last edited by dodger; 06-17-2012 at 08:19 AM.