Pope Francis has issued 21 proposals to stem the clergy sex abuse around the world, calling for specific protocols to handle accusations against bishops and for lay experts to be involved in abuse investigations.

Francis distributed the list on Thursday as he opened his high-stakes abuse prevention summit at the Vatican. The four-day event brings together some 190 bishops and religious superiors for tutorials on preventing abuse and protecting children.

The aim is to show pedophile priests a global problem and therefore require a global response.

The pope’s proposals draw heavily from existing best practices, including establishing rules for transferring seminarians and priests.

Another idea suggests a basic handbook showing bishops how to investigate cases.

Vincenzo Pinto/Pool Photo via AP