Kaye regularly hands out fines – they start at $80 and then double for each further offense – for the sort of rule-breaking he has spotted in Summerlin, a wealthy Las Vegas enclave where landscapers tend manicured grounds in the soaring heat. “A lot of people think because we are government workers we are not out there at that time but we are out 24/7, every day of the year,” he said. “The lake isn’t getting any fuller at this time so we need to conserve every single drop,” said Kaye, an energetic former US air force serviceman who wears a hi-vis vest and brandishes a badge as he does his rounds searching for violators.