The Delhi government is proposing to do away with the present system for checking pollution by vehicles, and bring in laser based "Smart Dog Sniffing System." Accepting that the existing system of issuing "pollution under control" certificates is heavily doctored, transport minister Rajendra Gupta said the government will replace the existing systems in about a year's time. According to the minister, the Indian Oil Corporation has assured the government that it will provide country's first Smart Dog, which is capable of checking about 40,000 moving vehicles in an hour.