A new study suggests that government enforcement of workplace health and safety rules can save lives without sapping a company's bottom line. The findings come from a decade-long look at hundreds of California work sites subject to random safety inspections. Researchers found that inspected companies reduced their injury claims by 9.4 percent compared to those not inspected, with no negative impact on profits or sales. Better yet, the same companies saved an average of 26 percent on workers' compensation costs in the four years following an inspection when compared with similar firms that were not randomly inspected.