Memorial Day events are short on time and long on variables. As an organizer or security lead you need a plan that is simple to brief, repeatable in execution, and compliant with federal and local rules. Below I lay out an operational checklist and pragmatic tech options you can put in place this week to reduce risk and keep attendees safe.

Start with a compact risk assessment and stakeholder table. Use a one-page matrix that lists: expected attendance, site layout and choke points, alcohol vendors, planned pyrotechnics, key times (parade start, wreath-laying, fireworks), weather risks, and nearby critical infrastructure. Run that matrix with your local law enforcement, fire marshal, and emergency medical services present. The Cybersecurity and Infrastructure Security Agency offers a mass-gathering security planning tool that is an excellent place to start for this sort of structured checklist and stakeholder mapping.

Coordinate airspace and drones early. Before the event day check the FAA Temporary Flight Restrictions (TFR) list and file any requests early if you need special airspace control. If you plan to host official drone operations such as a certified media or safety drone, confirm Remote ID compliance and any authorizations through the FAA well in advance. Remote ID is now active and will help authorities identify who is flying overhead, but it does not remove the need to coordinate with the FAA for TFRs or special authorizations.

Use detection, not jamming, for unauthorized UAS. Counter-drone detection suites that combine radar, RF, and optics will give you situational awareness without breaking the law. Deliberate RF jamming or other interference is generally prohibited because it can interfere with emergency communications and other critical services. If you detect an unauthorized drone, alert local law enforcement and the FAA so the flight can be handled through legal mitigation channels.

Medical readiness is not optional. Memorial Day weekends are hot, crowded, and alcohol-tinged. The CDC emphasizes how crowd density, heat, and access to exits influence health and safety risks at mass gatherings. Place clearly signed first aid stations and ambulant responder teams at multiple locations and make casualty collection points part of the site map. Pre-brief local hospitals and set expectations for surge. EMS and private medical providers recommend embedding medics within the footprint and making a joint incident action plan that accounts for violent incidents and mass casualty scenarios.

Be deliberate about crowd flow and choke points. Create one-way pedestrian routes and use barriers to keep moving lines separated from queuing lines. Designate accessible egress routes for people with mobility devices and keep at least one emergency vehicle lane clear at all times. Test ingress and egress during a walk-through and measure how long it takes to clear different sectors. If you are staging a fireworks display consult your local fire authority and the applicable NFPA-based code requirements enforced by your AHJ for permits and fallout zones. Local permitting pages typically reference NFPA 1123/1124/1126 standards for public displays.

Use layered screening, but respect rights and optics. For ticketed events use staggered entry times, multiple lanes, and clear signage so searches and bag checks do not gridlock arrival. If you use metal detectors, deploy them at the right scale and pair them with impartial, trained staff. Train your staff on de-escalation and clearly communicate rules to attendees. Keep protest and free speech considerations in mind when policing publicly accessible ceremonies and memorials.

Surveillance and analytics: pick what you can staff. Cameras with analytics are useful but only as effective as the human who acts on the alerts. If you deploy camera analytics focus on a small number of clearly defined detections such as perimeter breaches, large static crowding at exits, or unattended packages. Consider a short, dedicated operations watch with one or two people watching live feeds and an established escalation path to on-the-ground teams.

Gunfire and sound detection tools are tempting but know the limits. Acoustic gunshot detection systems can speed awareness of shots fired, but they have mixed performance in real-world deployments and raise privacy and civil liberties questions. Several jurisdictions have publicly questioned false positive rates and placement practices. If you consider acoustic detection, plan audits, a verification workflow, and transparency with the public and your legal advisors.

Communications and public messaging: simple beats complex. Create a public information line, post an event safety page, and use social channels to publish the nearest medical tent and lost and found. On site use pre-recorded PA messages for common instructions so staff can concentrate on evolving incidents. For staff comms rely on radios with backup phone groups and ensure radios are on different channels from local public safety unless explicitly coordinated.

Rehearse your incident action plan. Run a tabletop 48 to 72 hours before the event with all partners: event ops, venue, police, fire, EMS, and public information officers. Run one tabletop that focuses on an evacuation scenario and another that addresses a suspicious package or unauthorized drone. Confirm decision authority and the steps for requesting mutual aid.

After-action: capture three things fast. Within 24 hours collect (1) a short timeline of decisions and outcomes, (2) equipment failures and staffing notes, and (3) attendee feedback and any complaint trends. Use that to produce a prioritized list of fixes for your next event.

Quick operational tech checklist (deployable this week):

  • Run the CISA mass-gathering planning tool and distribute the output to partners.
  • Check NOTAM/TFR and Remote ID status with FAA. If you will use drones, confirm Remote ID compliance now.
  • Stand up a joint operations center or a staffed watch with clear escalation and one POC per agency.
  • Place medics and water stations near high density areas and stage casualty collection points.
  • Use detection-only counter-UAS sensors if you need airspace awareness and never use jammers. Coordinate with law enforcement for mitigation.
  • Confirm fireworks permits, the fall out area, and the fire marshal sign-off if you will display pyrotechnics.

If you can do only three things do these: 1) meet with police, fire, and EMS and walk the site, 2) publish a short safety map for attendees with exits and medical points, and 3) check FAA TFR and Remote ID status for your location. Those three steps cut a large portion of the common risk surface for Memorial Day events.

Security planning is a contact sport. Keep communications simple, pick a few reliable technology layers you can staff, and build repeatable procedures. The best tech in the world only helps when people know what to do with the information it produces.