Abstract: The disclosure provides a computer-implemented method of controlling safety operations at a designated site associated with Personal Protective Equipment (PPE) requirements. The method comprises: receiving sensor data from a sensor system monitoring the site; detecting an individual at the site based on the sensor data; identifying one or more items of PPE present on the individual based on the sensor data; determining a compliance score associated with the individual based, at least in part, on the one or more identified items of PPE and a PPE checklist associated with the designated site, the PPE checklist comprising one or more prescribed items of PPE; comparing the compliance score to a safety threshold; and controlling one or more safety operations at the site in dependence on the comparison between the determined compliance score and the safety threshold.