The Labour leader Iain Gray asked the first minister why he had not scrapped student debt and whether the SNP had ever intended to fulfil its promise to students.
Advocate depute Iain McSporran asked the officer if he could tell anything from the distance of the first impact mark with the wall and the final resting place of the car.
Ms Gardner was asked by committee convener and Labour MSP Iain Gray whether NHS boards and ministers "turned a blind eye or failed to notice" the issue.