Certified Information Systems Security Professional (CISSP)

Correct: Under the Reporting of Injuries, Diseases and Dangerous Occurrences Regulations (RIDDOR) 2013, certain ‘dangerous occurrences’—such as the collapse of scaffolding where the 15-meter height threshold is met or other specific failures—must be reported to the HSE. The supervisor’s first responsibility is to investigate the facts to ensure the incident is recorded in the site accident book and to determine if it meets the legal criteria for external reporting.

Incorrect: Filing a report immediately without an investigation is incorrect because RIDDOR reporting is only required for specific types of incidents; reporting non-reportable events creates unnecessary administrative burden and inaccurate data. Updating the risk register and notifying insurance are secondary administrative tasks that do not satisfy the immediate legal requirement for incident reporting and investigation. Waiting for a month-end report is a failure of supervisory duty, as RIDDOR and internal safety policies require timely action and reporting of significant incidents.

Takeaway: Supervisors must promptly investigate all safety findings to determine if they meet the specific legal criteria for a reportable dangerous occurrence under RIDDOR.

Correct: According to the Construction (Design and Management) Regulations 2015 and health and safety guidelines, excavations must be inspected by a competent person at the start of every shift where person work, after any event likely to have affected its stability (such as heavy rain or a fall of material), and at least every seven days. These inspections must be documented in a register to ensure a clear audit trail of safety compliance.

Incorrect: Waiting for a seven-day interval is insufficient if weather conditions have changed the stability of the ground. Waiving inspections based on soil type is a violation of safety protocols as all excavations carry inherent risks. A written report is mandatory for all statutory inspections, not just when defects are found, to prove that the duty of care has been met.

Takeaway: Excavations must be inspected by a competent person at the start of every shift and after any stability-impacting event, with all findings formally recorded.

Correct: A fundamental principle of a Permit to Work (PTW) system is the separation of duties. The Authorised Person (the issuer) must be independent of the person carrying out the work (the performer). This ensures that the safety precautions, such as isolation of energy or atmospheric testing, are verified objectively without the operational pressure of completing the task itself.

Incorrect: Allowing the same person to issue and perform the work creates a conflict where safety checks might be rushed or overlooked. Secondary sign-offs after the fact do not mitigate the immediate risk during the activity. Standing or blanket permits are unsafe as they do not account for changing site conditions or specific daily hazards, and training alone does not remove the need for independent verification.

Takeaway: A robust Permit to Work system requires an independent Authorised Person to issue the permit to ensure objective verification of all safety controls.

Correct: According to HSG47 (Avoiding danger from underground services), the safe system of work involves three essential stages: obtaining and using utility plans, using locating devices (such as a CAT and Genny/Signal Generator), and practicing safe digging techniques, which specifically includes hand-digging trial holes to verify the exact position and depth of services before mechanical equipment is used.

Incorrect: Relying solely on site survey drawings or utility plans is insufficient because they are often inaccurate or do not show the exact depth. Using a CAT tool in Power mode alone is inadequate as it will not detect cables that are not carrying a current or other services like gas and water pipes. Relying on surface markers or warning tapes is dangerous because these indicators may have been moved, removed, or were never installed correctly during previous works.

Takeaway: The standard safe system of work for underground services requires a combination of utility plans, detection tools (CAT and Genny), and hand-dug trial holes.

Correct: In accordance with the Health and Safety at Work etc. Act 1974 and the Provision and Use of Work Equipment Regulations (PUWER) 1998, the supervisor’s primary responsibility is to ensure the safety of the site. A whipping hose and failing supports represent an immediate risk of serious injury or death. The operation must be halted immediately to allow for a safe re-evaluation of the equipment and the method statement.

Incorrect: Attempting to secure or hold moving equipment while it is under pressure is extremely dangerous and violates basic safety protocols. Reducing the pressure or monitoring the situation from a distance are inadequate responses because they do not eliminate the immediate hazard to the workforce. Delaying action until the end of the shift ignores the supervisor’s duty to intervene when a risk is identified.

Takeaway: Immediate cessation of work is the only appropriate response when high-risk equipment like a concrete pump shows signs of mechanical instability or failure during use.

Correct: In accordance with standard fire safety and hot work procedures, a fire watch is a mandatory requirement. This involves a designated person monitoring the area for a period (typically 30 to 60 minutes) after work has finished to ensure that no sparks or heat have caused hidden smouldering that could lead to a fire later.

Incorrect: Reviewing insurance documents is an administrative task that should occur before work begins, not as a safety check for permit closure. Returning fire extinguishers immediately is dangerous, as they must remain available during the fire watch period. Ventilation may improve air quality but does not address the primary risk of delayed ignition or smouldering materials.

Takeaway: A formal fire watch period is a critical component of the Permit to Work system to mitigate the risk of delayed fire ignition following hot work activities.

Correct: The primary purpose of a site inspection is proactive monitoring. It involves a physical check of the workplace to identify hazards and, crucially, to ensure that the control measures previously identified in risk assessments are actually in place, being used correctly, and remain effective in protecting the workforce.

Incorrect: The other options are incorrect because inspections do not transfer legal duty of care to other departments, as the supervisor and employer retain their statutory responsibilities. Inspections are proactive monitoring tools, whereas RIDDOR reporting is part of reactive monitoring. Furthermore, inspections supplement but do not replace formal documentation like method statements or the risk assessment process itself.

Takeaway: Site inspections are a fundamental proactive monitoring tool used to verify that risk control measures are implemented and functioning as intended.

Correct: Under the Work at Height Regulations 2005, any platform used for work at height from which a person could fall must be inspected by a competent person at least every seven days, and a written report must be completed before the end of the relevant working period. If the reporting cycle is interrupted or there is any doubt regarding the equipment’s integrity, a fresh inspection and formal record are necessary to ensure the equipment is safe for continued use.

Incorrect: Retrospectively completing checklists is a breach of professional ethics and legal duty, as it falsifies safety records without verifying actual site conditions. Reporting a documentation gap to building control is not a requirement under the Management of Health and Safety at Work Regulations, which focus on risk assessment and management rather than specific building control notifications for minor administrative lapses. Allowing work to proceed with only a verbal briefing ignores the statutory requirement for physical inspections and written records, leaving the supervisor and the organization liable for non-compliance.

Takeaway: Statutory safety inspections for work at height equipment must be conducted and recorded by a competent person at least every seven days to ensure legal compliance and the safety of personnel.

Correct: A Method Statement is a key component of a Safe System of Work. It outlines the specific sequence of tasks and the control measures required to perform them safely. Under the Management of Health and Safety at Work Regulations 1999, if the methodology of the work changes (such as bypassing dust suppression), the risks must be reassessed and the Method Statement must be formally updated to reflect the new procedure. This ensures all workers are aware of the revised safe way to work.

Incorrect: The suggestion that verbal adjustments are sufficient is incorrect because safety procedures must be documented and communicated to be effective and legally compliant. Claiming the document is static or only for initial inductions is a failure of site supervision, as Method Statements must be ‘live’ documents that reflect actual site conditions. Treating the document as a commercial contract for speed ignores the legal hierarchy where health and safety regulations take precedence over project deadlines.

Takeaway: A Method Statement must be treated as a live document that requires formal revision and communication whenever the sequence or method of work changes.

Correct: According to BS 5975 and standard site safety procedures, the Temporary Works Coordinator (TWC) is responsible for maintaining the Temporary Works Register and ensuring that all inspections are carried out. Notifying the TWC is the critical first step because they have the authority to confirm if the inspection occurred but was not recorded, or if an immediate safety check is required before work continues.

Incorrect: Signing off the record yourself is a breach of safety protocol if you are not the designated competent person or the TWC. Dismantling the system immediately is a disproportionate response before verifying the actual safety status with the TWC. Waiting for a future meeting is unacceptable as it leaves a potential safety risk unaddressed while work is active.

Takeaway: The Temporary Works Coordinator (TWC) must be immediately informed of any documentation gaps to ensure the structural integrity and procedural compliance of temporary installations are maintained.