Security Industry Authority (SIA) Licence CCTV (Public Space Surveillance) Specialist Module Syllabus

What is the difference between an analogue DVR and a digital NVR system?

A DVR (Digital Video Recorder) records analogue camera signals which it digitises locally; an NVR (Network Video Recorder) records digital footage from IP cameras over a network, generally offering higher resolution and flexibility.

What does 'PTZ' stand for and what does it allow an operator to do?

Pan, Tilt, Zoom — it allows the operator to remotely rotate the camera horizontally (pan), vertically (tilt) and magnify the image (zoom) to follow and focus on targets.

What is the difference between a fixed (static) camera and a PTZ camera?

A fixed camera covers one set field of view continuously; a PTZ camera can be moved and zoomed by the operator to actively track targets, but only covers one direction at a time, potentially leaving gaps.

What does the camera 'field of view' (FOV) refer to?

The area or scene that a camera can capture, determined by the lens focal length and the camera's position — a wider FOV covers more area at lower detail, a narrower FOV covers less area at higher detail.

How does focal length relate to a camera lens's field of view and magnification?

A longer focal length gives a narrower field of view and greater magnification (telephoto); a shorter focal length gives a wider field of view and less magnification (wide-angle).

What is 'lux' a measure of, and why does it matter for CCTV cameras?

Lux measures illuminance (light level). It matters because cameras have a minimum lux rating to produce a usable image; low-light or infrared/day-night cameras are needed where lighting is poor.

What does a shift handover in a CCTV control room involve?

The outgoing operator briefing the incoming operator on ongoing incidents, equipment faults, active tasks, persons/vehicles of interest, instructions from supervisors and agencies, and any logs — ensuring continuity of monitoring.

Why is an accurate and documented shift handover critical?

To ensure no incident or ongoing task is missed or duplicated, that equipment faults are known, and that continuity and accountability are maintained across the change of staff.

List standard control room opening/start-of-shift procedures for an operator.

Check and test equipment (cameras, recorders, monitors, comms), verify recording is working and the time/date stamp is correct, read the handover log and briefings, confirm camera presets, and report any faults.

Why must the time and date stamp on CCTV recordings be checked and correct?

Because incorrect time/date undermines the evidential value and continuity of recordings; accurate timing is essential to prove when an incident occurred and for footage to be admissible in court.

What routine maintenance and testing should be carried out on CCTV equipment?

Regular checks of camera image quality, focus, lens cleanliness, recording function, monitors, lighting, time/date accuracy, comms equipment, and the backup power supply — with faults logged and reported promptly.

What should an operator do when a camera or recorder fault is discovered?

Record the fault in the fault/maintenance log with time and detail, report it to the supervisor, raise a maintenance request, and note the loss of coverage so gaps in recording can be accounted for.

What is 'preventive maintenance' versus 'corrective maintenance'?

Preventive (planned) maintenance is scheduled servicing and checks to stop faults occurring; corrective (reactive) maintenance is the repair carried out after a fault or failure has already happened.

Name key health, safety and welfare hazards specific to a CCTV control room.

Visual fatigue and eye strain from screens, poor posture/musculoskeletal strain (DSE), repetitive movements, stress and fatigue from concentration, poor lighting, electrical hazards, and inadequate breaks.

What does DSE stand for and why is it relevant to CCTV operators?

Display Screen Equipment. Operators spend long periods at monitors, so DSE regulations require workstation assessments, adjustable seating, screen positioning, and regular breaks to prevent eye strain and musculoskeletal problems.

Which main piece of UK legislation governs health and safety in the control room?

The Health and Safety at Work etc. Act 1974, supported by regulations such as the Health and Safety (Display Screen Equipment) Regulations 1992 and the Management of Health and Safety at Work Regulations 1999.

Why are regular breaks important for CCTV operators' welfare and performance?

Sustained visual concentration causes fatigue and reduced vigilance; breaks restore alertness and observation accuracy, prevent eye strain and stress, and reduce the chance of missing incidents.

What is meant by 'target tracking' in camera operation?

Following a specific person, vehicle or object continuously across the camera network — using PTZ control and handing over between cameras — to monitor behaviour, gather evidence and direct response.

What is 'camera handover' during target tracking?

Smoothly transferring the tracking of a moving target from one camera's coverage to the next adjacent camera so the subject remains in view without losing them in coverage gaps.

List good practices for effective camera operation.

Use presets and smooth movements, anticipate the target's direction, keep the subject framed and in focus, avoid losing the target during zoom, return cameras to home/preset after use, and continuously narrate/log observations.

What is the difference between 'monitoring' and 'directed surveillance'?

General monitoring is overt observation of public space for safety/crime prevention; directed surveillance is covert, planned, sustained surveillance of a specific person that may require authorisation under RIPA 2000.

What does RIPA 2000 regulate in relation to CCTV?

The Regulation of Investigatory Powers Act 2000 governs covert directed surveillance, requiring lawful authorisation when CCTV is used in a planned, targeted, covert way against an individual.

What makes a CCTV recording 'evidential'?

That it is captured and handled to be admissible in court — original/master copy, accurate time/date, unedited, with documented continuity (chain of custody) and clear identification of what it shows.

Describe the correct process for producing an evidential copy of footage.

Identify the relevant footage, export the master/original, label it with reference, time/date and operator details, seal it, record the action in the log, store securely, and only release with documented authorisation and audit trail.

How should evidential recordings be stored before being passed to the police or court?

In a secure, access-controlled location (e.g. a locked evidence store), uniquely referenced and logged, protected from tampering, overwriting or damage, with access restricted and recorded.

What information must be entered in an incident log when recording an event?

Date and time, camera number/location, nature of the incident, persons/vehicles involved with descriptions, actions taken, agencies contacted, operator's name, and the outcome — written factually and in chronological order.

Why must incident logs be factual, accurate and contemporaneous?

Because they may be used as evidence in court; they must record only observed facts (not opinion), be written at the time of the event, and be legible, signed and tamper-free to be reliable.

What is the difference between recording 'fact' and 'opinion' in an incident log?

Fact is what the operator actually observed (e.g. 'male wearing red jacket struck another male'); opinion is interpretation or assumption (e.g. 'he looked drunk') — logs should record facts, with any opinion clearly identified as such.

How should an operator effectively liaise with the police during a live incident?

Provide clear, concise, factual information using accepted descriptive terms (e.g. ABC of descriptions), give the target's location and direction of travel, update continuously, follow police instructions, and log all communications.

Name agencies, besides the police, a CCTV control room commonly liaises with.

Ambulance/emergency medical services, fire and rescue, local authority and community safety teams, licensing/door supervisors, traffic management, Pubwatch/retail radio schemes, and transport operators.

What is a recognised system for giving a clear, consistent description of a person over the radio?

The 'A to H' / systematic description method — describing age, build, clothing (head to toe), distinguishing features, etc. in a logical order — so police and other operators can quickly identify the subject.