PLEASANTON -- A former Livermore junior golf instructor accused of molesting three boys pleaded not guilty on Thursday to charges in Alameda County Superior Court.

Andrew Nisbet, 32, is suspected of sexually abusing three students, ages 12 to 17, at his home and in his car in the parking lot of the Livermore golf course between 2007 and 2012. A CD reportedly containing videos depicting nude male children engaged in sexual acts was found in his home, according to police.

Nisbet was arrested Dec. 7, one day before he was scheduled to receive the 2013 Junior Golf Leader Award from the Northern California PGA. He faces 75 counts of performing lewd acts with a child, possession of pornography and sending harmful matter to children.

Andrew Nisbet  (Livermore Police Department)
Andrew Nisbet (Livermore Police Department) (mdufrene)

"His popularity and being nationally recognized was a benefit to him as he groomed these children and gave them gifts," said Livermore police spokesman Steve Goard. "Child predators are usually very manipulative and know how to convince people to put down their guard."

Nisbet was formerly director of golf instruction at the Las Positas Golf Course in Livermore, where he ran the GRIP Junior Golf Academy, a golf development program for youths and adults. He created the program in 2002 while living in Michigan. The school has helped 3,500 children and teens improve and more than 85 junior golfers obtain college scholarships, according to the academy's website.

He also directed the U.S. Kids Golf Bay Area Tour for children ages 5-14. In 2012, the U.S. Kids Golf Foundation recognized Nisbet as a "Top 50 Master Teacher."

Nisbet also traveled widely, including to Alabama and Michigan, where he led classes. Goard said the department has received calls about victims in other states, although no one has yet stepped forward.

Nisbet's pretrial hearing has been scheduled for March 26. He faces up to 45 years in prison if convicted on all charges.Staff writer Jeremy Thomas contributed to this report. Contact Karina Ioffee at 650-576-9626. Follow her at Twitter.com/kioffee.