Many thanks for the opinions.

It seems to me that a fair summary of your various comments is as follows.

There is no actual legislation banning this practice, and as Qatar is not governed by the Sharia you will not be prosecuted, however out of respect for the country, and in order to preserve your company's good name, it is recommended to seperate all single staff members of opposite sex, even if they are married but without their partner ?????????

Best wishes
Pirran