In a case involving theft of £5000.00 from a safe, which was opened with a key, I believe it was a betting office, where only 2 people had access to the key to open the safe. The Police investigated and the employer investigated but both parties said they did not open the safe but £5000.00 was taken from the safe. Only the two people had the means and opportunity to take the money and it could not be reasonably established who took the money. The employer was faced with the situation where he knew that at least one of those people was a thief. He did not know which one of those people was a thief so he took the decision to dismiss both of them on the grounds that he could not trust both of them because he did not know which one of them was the thief. Unfortunately, that meant that the innocent party was dismissed as well as the guilty party.

That is you work as a Cleaner or a Security Guard and you are employed at a factory owned by another Company to provide that service. If the third party decides they do not like the way you work, they do not like the manner in which you perform your duties and they complain to your employer and if that party then says we do not want that person on our site, your employer is then faced with the difficulty of not being able to employ you on that site. He is then under a duty to provide alternative work at another site if he has it but if he does not have it, he could dismiss you on the grounds of some other substantial reason with notice on the basis that he has been subject to “third party pressure”.