How a gun at Trump rally would be found

In the wake of a shocking incident at a campaign rally in Butler, Pennsylvania, where former President Donald Trump was shot, people are wondering about the security measures in place at such events.

One critical component of event security that has gained attention is the magnetometer, used to look for guns and weapons at the rally.

What is a magnetometer?

A magnetometer is a device used to detect magnetic fields. It plays a crucial role in security settings by identifying metallic objects carried by people entering secure areas, such as public events, airports, and government buildings.

At political rallies and public gatherings, magnetometers are used as part of the massive security protocols, to screen attendees before entry.

How does a magnetometer work?

Magnetometers operate by sensing disruptions in magnetic fields caused by metallic objects. When a person passes through a magnetometer, it alerts security personnel to the presence of such objects. This allows for immediate action to prevent potential harm and maintain a secure environment.

Most people would recognize magnetometers from TSA checkpoints, but they can also be wands, hand-held detectors and larger archway style scanners.

It’s not yet clear if the alleged shooter passed through a magnetometer.

This article originally appeared on Cherry Hill Courier-Post: How a gun at Trump rally would be found; what is a magnetometer?