Fighting child sexual abuse online , pg. 2
"Google has been committed to fighting child sexual abuse and exploitation on our services since our earliest days. We devote significant resources—technology, people, and time—to deterring, detecting, removing, and reporting child sexual exploitation content and behavior."
Transparency report, pg 1
"Total reports 458,178
A report sent to NCMEC may include information identifying the user, the minor victim, and/or other helpful contextual facts. It may be the case thatmore than one report is sent on a particular user or piece of content — for example, in cases where content is identified from multiple sources.NCMEC may send those reports to law enforcement agencies around the world."
https://transparencyreport.google.com/child-sexual-abuse-material/reporting?hl=en