The SIU has wrapped up an investigation of a fatal crash near Wasaga Beach earlier this summer.
On July 3, an OPP officer clocked a Tesla doing 118 along Crossland Road.
Intending to initiate a traffic stop, the officer turned her cruiser around but lost sight of the speeding car in the process.
She came across the vehicle a short time later, after it had left the road and landed in a field.
The 17 year old driver was killed. A passenger, also 17 was injured.
The SIU has concluded the officer did nothing wrong and the file has been closed.