No exception, all car makers in Japan must follow the government rule to give inspections to their assembled cars at all factories by Certified Inspectors before shipping to dealers, and the all inspection sheets are required the signature and wet seal of the inspector as the evidence. However, NISSAN has prepared the copies of the seals of their certified inspectors and let uncertified inspectors or trainees write down other signatures and stamp the copies on the inspection sheets after the test. This breached system seems to be introduced over five years ago.
They have a history of mass layoffs since the French business man joined the company as CEO. The layoffs not only brought the quick recovery of business performance to them but also caused the huge loss of their skilled factory engineers. It seems that they had not have a time enough to build new resources to keep fine quality as result.
Unfortunately, they no longer be called Japanese car manufacturer as before when they had competed against Toyota to gain the confidence. Because they would like to prioritize their profit rather than the quality. I suppose that all japan TV media would follow this scandal if this non-preferred flaw causes a fatal accident happens like death in traffic, as all of them jumped at the scandal of MISUBISHI Motor Cars who were acquired by NISSAN.