Questão jurídica principal
Whether the METAS expert was biased because he had earlier dealt with the radar device
Decisão extraída
No disqualifying bias or appearance of bias was shown; prior involvement in installation and certification did not require recusal.
Fundamentação extraída
Only a limited number of specialists could perform such technical work; the expert’s earlier participation in installation approval and co-signing the calibration certificate did not create an objective conflict.