Nassau police and school officials came together Friday to outline what safety improvements have been made in schools to keep students safe if an active shooter situation took place.

Nassau Police Commissioner Patrick Ryder said during the news conference that officers will be heading to schools in the county to understand the layouts of the buildings in an effort to be prepared.

"Come Tuesday, when the school doors open, every single able-bodied cop in the Nassau County Police Department will be out visiting schools,” the commissioner told News 12.

He also said principals and other school officials have received active shooter training.

Ryder touted the RAVE app response system that will be implemented in all Nassau public schools by the second week of September. He says people inside schools with the app only have to press one button to alert authorities about an active shooter, allowing police to respond quicker and more effectively.

Ryder says police have reached out to all superintendents in all school districts across the county, including Catholic schools and yeshivas.

"We've met. We've trained. We've explained to them how to act under an active shooter,” says Ryder.

Friday’s news conference is a precursor for a larger forum on the issue on Sept. 25 where county officials, school officials and community members can learn more about the school safety improvements.