The first of the three was caught in Niederanven and had his licence confiscated after a breathalyser test revealed he was over the legal limit.
Shortly before midnight, another driver was observed driving erratically on the A1 and was stopped by a police patrol. He received a caution following a positive alcohol test.
The third was caught early on Friday morning, travelling through the capital at 4.30am. Police issued a caution.
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