Another dangerously high speed was detected by the Letterkenny Roads Policing Unit on the Dual Carriageway outside Letterkenny last night. On Monday night, Gardaí arrested another driver after he was caught driving at 179Kph on the same road. The driver was also arrested and charged to appear in court and had his car seized. The driver was arrested and charged to appear in court. Driver arrested for dangerous 164Kph speeding near Letterkenny was last modified: byTags: