Does barbican beer have alcohol in it is made in uae and says non alcohol but a lot of beers like that have a minor percentage?

We do not know the alcohol content of Barbican for certain. However, all "non-alcoholic" beers and wines contain trace amounts of alcohol. Label requirements for "non-alcoholic" beers and wines vary from country to country, but the cutoff is usually around 0.5% alcohol by volume.