The 74-year-old musician was arrested by the Attorney General’s office Cyber Crimes Unit on Thursday. He faces 30 counts of distributing, possessing or viewing matter depicting sexually explicit conduct involving a child, a Class C felony.
He was booked the Boone County Jail and was released on a US$35,000 bond the same day.
According to the Attorney General’s office, special agents began investigating Yester after they determined that someone using a computer at Yester’s address downloaded child pornography. The investigation will now be handed over to the 14th Judicial District Prosecutor David Ethredge.
Prior to joining the Spoonful in 1968 as a replacement for original guitarist Zal Yanovsky, Yester also played in the Modern Folk Quartet and served as a producer and arranger for artists such as the Turtles, Pat Boone and Tom Waits.
This article originally appeared on PEOPLE