Protective security · Martyn's Law
//notify & guide the public · account for every person
The Terrorism (Protection of Premises) Act demands that public venues can notify, guide, and account for every person when it matters. whoot. delivers that in one platform — always-on voice for your team, and two-way SMS that reaches everyone else on any phone.
Suspicious package reported — Gate 4 North
Evacuate now. Proceed calmly to Assembly Point B.
Initiating partial evacuation — Zone B
Visual on package. Cordoning 30m radius.
247 / 250 confirmed safe at Point B.
Summary sealed. Full recording committed to audit log.
100%
Comms recorded
<24s
To full-team alert
2-way
SMS to any phone
AES-256
Encrypted, always
The legislation
What is
Martyn's Law?
Named in honour of Martyn Hett, who lost his life in the Manchester Arena attack in 2017, Martyn's Law — formally the Terrorism (Protection of Premises) Act — establishes a legal duty on those responsible for certain public premises and events to take proportionate steps to protect the public from terrorism.
It is enforced by a new Security Industry Authority (SIA) regulatory function. Procedures must be documented, drilled, and demonstrable — not just written down.
Key obligations · qualifying premises
Standard tier — 200+ capacity
Reasonably practicable procedures to reduce harm and enable evacuation.
Enhanced tier — 800+ capacity
Additional measures: risk assessments, security plans, staff training, cooperation with authorities.
Designated senior individual
A named person accountable for compliance.
Documented & demonstrable
Procedures must be recorded, drilled, and evidenced on inspection.
How whoot. helps
Four requirements.
One platform.
whoot. addresses the core operational demands of Martyn's Law in a single, integrated solution.
Instant communications
The Act requires procedures that enable rapid notification and coordination. whoot.'s always-on voice rooms keep your entire security team connected at all times — no calls to make, no numbers to dial.
- Push-to-talk reaches all team members instantly
- Zone-specific rooms for targeted alerts
- Sub-150ms latency — faster than any radio system
- PSTN dial-out to external services from within the room
Full accountability
Martyn's Law requires a designated senior individual responsible for security procedures. whoot. provides an immutable evidence base of every communication, decision, and action taken.
- Immutable audit logs: who, what, when
- Speaker identification on all recordings
- Exportable reports to support SIA inspections
- Role-based access with full separation of duties
AI transcription
Documented procedures and post-incident analysis require accurate records. whoot.'s real-time AI transcription converts every spoken word into searchable, attributable text.
- Real-time speech-to-text in 30+ languages
- AI-generated summaries and action items
- Full-text search across all incident records
- Timestamped and speaker-attributed transcripts
Scenario replay
The Act expects venues to train staff and continuously improve procedures. whoot.'s scenario replay turns every drill and incident into a training opportunity.
- Full timeline scrubbing with speaker-tagged waveforms
- Synced transcription — click any line to jump to audio
- Use real drills as training material for new staff
- Identify gaps in response and refine procedures
New · Two-way SMS
Reach everyone.
Even without the app.
Martyn's Law is about the public — and most of the public isn't in a voice room. whoot. now pairs always-on voice for your team with two-way SMS that reaches everyone else: staff without the app, contractors, and the people on your list. No app to install, no data connection — just their normal Messages inbox, where texts get read fast.
And it goes both ways. A one-way blast only tells you what you said; a reply tells you who's safe, who needs help, and who's already at the assembly point — every response threaded right beside your voice channels.
Incident SMS · list of 250
two-wayEvacuate now. Proceed calmly to Assembly Point B. Reply once you are safe.
Safe and accounted for at Point B.
On my way out via the south exit.
Need assistance — 2nd floor, west.
Reaches any phone
No app to install, no data connection needed. If they carry a mobile, your alert lands in their normal Messages inbox — staff, contractors, and the public on your list alike.
It talks back
Recipients reply straight from their standard Messages app. Every response threads back into whoot. — right beside your voice channels.
Know who's safe
A blast only tells you what you sent. Replies tell you what's actually happening — who's safe, who's stuck, who's already at the assembly point.
One list, both ways
Send and receive on one number and one list. The people you alert are the people you hear back from — no separate inbox to babysit.
When seconds count
Phone trees don't work.
Martyn's Law demands that venues can rapidly notify, guide, and protect the public. whoot. replaces radios, phone trees, and ad-hoc messaging with an always-on, fully recorded, instantly accountable communications platform — voice and SMS, both ways.
The platform
Everything protective
security demands.
A single platform covering communications, mass notification, recording, accountability, and analysis.
Instant voice coordination
Always-on rooms for security teams. Push-to-talk reaches every team member simultaneously — no dialling, no waiting, no missed alerts.
Two-way SMS to any phone
Reach everyone who isn't in a voice room — no app, no data connection. Recipients reply from their normal Messages inbox and every reply comes back to your team.
Full recording & retention
Every communication automatically recorded with tamper-proof storage. Speaker identification, timestamps, and configurable retention policies.
AI transcription
Real-time speech-to-text across 30+ languages. Search any incident by keyword, speaker, or date. AI-generated summaries and action items.
Accountability & audit
Immutable audit trails of every action — who joined, who spoke, when decisions were made. Exportable reports to support your regulatory obligations.
Scenario replay
Full timeline scrubbing with speaker-tagged waveforms. Review any drill or live incident from start to finish. Train teams with real examples.
<150ms end-to-end latency
WebRTC-powered voice with zero startup delay. When seconds matter, your team is already coordinating.
End-to-end encryption
AES-256 at rest, DTLS-SRTP in transit. Zero-trust architecture with SAML SSO and enforced MFA.
PSTN dial-out
Reach essential parties, local authorities, and external stakeholders from within your voice room. No additional infrastructure required.
Role-based access
50+ granular permissions across 11 categories. Define who can transmit, who monitors, and who accesses recordings — matching your command structure.
We help you prepare
We help you prepare.
Not just plan.
The Terrorism (Protection of Premises) Act requires that premises operators take reasonably practicable steps to protect the public. whoot. provides the operational communications infrastructure and the evidential record to support your preparations.
Security
Enterprise-grade security.
By default.
Sensitive security communications demand the highest level of protection. whoot. encrypts every byte — no optional toggles, no compromises.
Encrypted in transit
DTLS-SRTP for all media streams. TLS 1.3 for signalling. Perfect forward secrecy ensures past sessions remain secure.
Encrypted at rest
AES-256 for all stored recordings and transcripts. Data residency controls for UK-based storage requirements.
Access control
SAML SSO, enforced MFA, 50+ RBAC permissions. Define who transmits, who monitors, and who accesses recordings.
Audit & monitoring
Immutable audit logs of every action. Real-time anomaly detection. Exportable reports for SIA inspections and post-incident reviews.
The difference
Traditional methods
vs whoot.
Radios, phone trees, and manual logs were never designed for the requirements of Martyn's Law.
Where it's used
How venues
use whoot.
From 100-capacity venues to 80,000-seat stadia — proportionate, scalable protective security communications.
Arenas & stadia
Coordinate security across gates, concourses, and control rooms. Instant building-wide alerts with zone-specific rooms for targeted response.
Festivals & events
Temporary infrastructure for large gatherings. Deploy in minutes, scale to thousands of staff, and maintain full recording for post-event review.
Shopping centres & retail
Persistent rooms between on-site security, centre management, and tenant liaison. Lockdown coordination in real time.
Hotels & conference venues
Multi-floor, multi-zone coverage with role-based rooms. Guest evacuation coordination with recorded accountability.
Implementation
From obligation to
operational readiness.
A clear path to operational readiness — no hardware procurement, no complex integration.
Establish rooms & lists
Create always-on voice rooms mapped to your zones, and build the SMS recipient lists you'll notify when it counts.
Drill & record
Run security drills over whoot. Every word recorded. Replay sessions to refine response procedures.
Coordinate in real time
Your team is already connected on voice; one tap alerts everyone else by two-way SMS. Notify, guide, and hear back — instantly.
Analyse & improve
AI transcription, scenario replay, and exportable audit logs. Build your evidence base. Continuously improve.
Strengthen your posture
Protect your venue.
Protect your people.
Speak with our team about how whoot. can help you prepare for Martyn's Law — from initial assessment to full operational readiness. Voice, two-way SMS, and the evidence trail to prove it.