Inside packed chambers, Washington lawmakers heard testimony on four gun-related bills Monday.

The Senate Law and Justice Committee heard testimony Monday on a series of gun-related bills aimed at banning untraceable firearms, limiting high-capacity magazines, and allowing police to seize weapons during domestic violence calls.

The Alliance for Gun Responsibility called it their most robust legislative agenda ever.

Ami Strahan, whose 15-year-old son Sam Strahan was killed in the 2017 Freeman High School shooting, was one of the proponents who spoke out at the hearings.

“When it hits home it kind of drives action,” Strahan said. “I know how terrible this has been for me.”

Strahan spoke in favor of Senate Bill 5062, which bans magazines with more than 10 rounds of ammunition. Supporters say the bill prevents mass shooters from reloading quickly, therefore saving lives.

Opponents argue that most high-capacity magazines are owned by law abiding citizens, and the measure wouldn’t have an impact on crime; rather it would prevent people from defending themselves.

Senate Bill 5143 requires officers to confiscate firearms and ammunition while they’re making a domestic violence call and they believe the weapon was used or threatened to be used. Law enforcement also must send the report to a prosecutor.

Senate Bill 5061 would ban “ghost guns” or undetectable and untraceable firearms.

That bill comes after Washington Attorney General Bob Ferguson sued in July when the Trump administration allowed a Texas company to release blueprints for a 3D printed gun online, which opponents say can be made without a background check.

A fourth gun-related bill, Senate Bill 5174, moves to require issuing authorities to approve or deny concealed pistol licenses within 30 days or 60 days if the applicant doesn’t have a state ID. Applicants must also fulfill handgun proficiency requirements for approval.