Sen. Tick Segerblom, D-Las Vegas, introduced legislation Thursday that he said would make it easier for the governor to persuade retirees with valuable experience to take upper-level appointments.SB231 was referred to the Senate Government Affairs Committee for study.He said that under current law, a state or other government employee stops receiving his or her retirement checks after going back to work in a state job. His legislation would let them keep receiving their pension checks.“A lot of times, a person the governor wants to appoint has specific knowledge,” Segerblom said. “Often the people most experienced in an area are probably …