Jackmohan2007 you are making a point here but practically its very difficult coz all those companies are owned by Qatari nationals and the victom of forced labour are expats. Abolishing NOC will only upset Qatari in general and it will be a tough decision for Govt itself.

Anyway the people who are responsible to abolish NOC are Qataris and most of them are using it as a threat in thier own companies so dont expect them to make any decision that can adversly effect thier own interest.