What is the ideal site to make a burr hole in a patient of head injury with rapidly deteriorating sensorium & progressive dilatation of pupil with no localizing sign?

Burr hole surgery should be done by taking into consideration side of pupillary dilatation 1. One sided pupillary dilatation: Burr hole on that side 2. Both sided pupillary dilatation: Burr hole on the side of first dilated pupil/ side with obvious external trauma. 3. No localizing sign: Burr hole on the side of dominant hemisphere i.e left temporal.