On Friday, for the second straight week, a driver ran into a vehicle driven by an off-duty law enforcement officer and then fled. The officer followed the hit-and-run driver, who was ultimately charged with driving while intoxicated. Jimmy Jahoda, a retired East Hampton Town policeman who now works part-time for the town’s justice court, was headed down Madison Street in Sag Harbor in his 1993 Chevrolet pickup truck at a little after 5 p.m. He pulled over, he told Sag Harbor Village police, when he saw coming toward him another pickup, a Dodge Dakota, weaving along the road. The front of the Dakota clipped the front of Officer Jahoda’s truck, which he uses for his Move It Out Estate Sales business. As Officer Jahoda began to get out of his vehicle, he told police, the Dakota drove off. The court officer began to follow it, while calling 911. He was connected at first to a department in Connecticut, who had no idea where Sag Harbor was, before the call was transferred to Suffolk County police, who in turn contacted the Sag Harbor department. Meanwhile, Officer Jahoda was able to pull the Dodge over. When village police arrived they found its driver, Jonathan A. Karl, 38, a Sag Harbor resident, standing by his truck with the court officer. Police said Mr. Karl was so intoxicated that he could not perform roadside sobriety tests. He was taken to Division Street headquarters, where a breath test produced a blood-alcohol reading of 0.23 percent, well over the 0.18 reading that elevates a D.W.I. charge to the “aggravated” level. The charge was still a misdemeanor, police said, as Mr. Karl had no prior drunken-driving convictions. A little after midnight, in his holding cell, he began making “suicidal threats,” police reported. He was taken to Stony Brook University Hospital for psychiatric observation, and will be arraigned at a future date. East Hampton Town police leveled the same charge against another Sag Harbor resident after pulling her over on Route 114 early Saturday morning. Bethany Shene was said to be driving a 2005 Jeep on the shoulder of the road, at about 25 miles an hour, before an officer stopped her. At headquarters her blood-alcohol level was recorded at 0.19. She was released Sunday morning without bail, due to her roots in the community, but with a date on East Hampton Town Justice Steven Tekulsky’s criminal calendar. In East Hampton Village late Sunday night, police arrested Boris A. Dubnov, 30, of Lyndhurst, after pulling him over on Montauk Highway near Stephen Hand’s Path. Police said he had crossed the double yellow line to pass another vehicle. His breath-test reading was 0.12, according to the report, and he was charged with misdemeanor drunken driving. A reading of 0.08 or higher triggers the D.W.I. charge. Mr. Dubnov was released in the morning after posting $250 bail.