BOSTON (WWLP) – A former Boston police officer and union boss is now a convicted child rapist.

After changing his plea from not guilty to guilty on Wednesday, Patrick Rose will spend at least a decade in prison. Rose pleaded guilty to nearly two dozen child sexual abuse charges, including child rape. In exchange for his plea prosecutors dismissed a dozen charges.

The incidents spanned nearly 30 years and all of them involved his family members some as young as 7-years-old.

The Boston police department was aware of allegations against rose as early as 1995 but allowed him to stay on the force.

Once he is released, Rose will spend another decade on probation. He’ll also have to wear an ankle monitor, and register as a sex offender.