Client stopped by police for speeding. Following initial questioning officer directs driver to step from vehicle to complete field sobriety testing in view of the officer’s cruiser mounted audio/video equipment. Defense requests copy of audio/video evidence as standard pre-trial discovery practice. Copy and original video footage are rendered mostly unusable due to police equipment failure. Defense prepared to argue that video was best evidence of field sobriety tests and likely exculpatory to defendant. Prosecution prepared to try case on other evidence of impairment. Defense negotiates pre-trial dismissal of DWI charge.