I searched on the Wiki, but I couldn't find anything detailled.
Does someone have more information about stealing items from someone (pickpocketing) ?
I know that taking empty casing is always successful and does not cost Karma.
I imagine that the chance you get caught depends on your Sneak (+ maybe Luck) and on the Perception of the character you steal from.
I also imagine tha the weight and / or value of the item influences the chance to be caught.
It would be nice to have a clear formula.