The Las Vegas Gambling Surveillance Collection (approximately 1990-2007) contains materials presumably from the office of Daniel Schreffler who worked as a surveillance officer for Boyd Gaming Corporation, including the Stardust Casino, during the early to mid-2000s. Materials include print outs and digital versions of CCTV images, Stardust Casino surveillance reports, and alert reports related to gambling and gaming cheaters in Las Vegas, Nevada from gaming investigative services such as Griffin Investigations, SIN Report, and Biometrica Systems. Materials also include Daniel Schreffler's email correspondence and employee related paperwork and documentation from the Stardust Casino.