As others have pointed out, this definitely isn’t the case. However, what you may be thinking about is the extension of “windows”, i.e. periods of time in which civil (but not criminal) charges can be filed related to child sexual abuse cases. Several states have at times passed legislation which extends the length of time that childhood sex abuse victims have to file suit, both against individuals who abused them and against employers of the abusers who failed to protect children.
One particularly telling example came from California in 2014. One law, SB-926, extended the window for prosecutions of child abusers. It sailed through the legislature and Gov. Brown signed it into law. Another law, SB-924, sailed through the legislature, but then the governor vetoed it. SB-924 would have extended the window for lawsuits against employers who failed to protect children from abusers. Some employers, that is. It was specifically written to allow for more lawsuits against private employers, but not against government employers. Some suspected that the reason the legislature didn’t want to open up the window for lawsuits against the government was things like this:
The Los Angeles Unified School District had received complaints of inappropriate behavior by a Miramonte Elementary School teacher nearly three decades before he was arrested for lewd acts against children, according to court documents.
The documents show that district officials knew about allegations against teacher Mark Berndt in May 1983 — about a decade earlier than had been previously disclosed to the public. Berndt, 63, pleaded no contest last year to lewd conduct and was sentenced to 25 years in prison.
Berndt taught at Miramonte from 1979 to 2011, when investigators began to look into his conduct based on photos turned into police. He was later accused of spoon-feeding his semen to blindfolded students as part of what he called a “tasting game.”
According to the documents, which were filed as part of a civil lawsuit on behalf of Berndt’s victims, the teacher had been accused of dropping his pants during a 1983 school trip to a museum and park.
Whatever the motivation, Gov. Brown vetoed the bill, so both the Catholic Church and the L.A. school district are safe from lawsuits related to sheltering pedophiles 30 years ago.