Answer
$0.00484$
Work Step by Step
We know that $probability=\frac{number \ of \ good \ outcomes}{number\ of\ all\ outcomes}$, therefore $P(not \ guilty)=\frac{58+14}{392+58+564+14}=\frac{72}{1028}\approx0.07003$.
By using the multiplication rule:
$\frac{72}{1028}\times\frac{71}{1027}=\frac{1278}{527878}\approx0.00484$.