Dependability Limited's tests worked in 'vast majority of cases' according to director of Social Security

The director of Social Security has defended controversial incapacity assessments saying they did work 'in the vast majority of cases'.

Last week a Social Affairs Policy Review Committee heard evidence from political members and civil servants involved in Treasury and Dependability Limited's work. 

The tests - assessing whether people on sick benefits are fit for work have been widely criticised - with an independent report stating they were over-simplified and unsuitable. 

Ross Stephens was quick to refute Douglas North MHK David Ashford's concerns over the failures: