The arrest comes more than two weeks since police began investigating the incident that led to Johnson’s death on Oct. 28.
“Our investigation launched immediately following this tragedy and we have been carrying out extensive enquiries ever since to piece together the events which led to the loss of Adam in these unprecedented circumstances,” South Yorkshire Chief Superintendent Becs Horsfall said. “We have been speaking to highly specialised experts in their field to assist in our enquiries and continue to work closely with the health and safety department at Sheffield City Council, which is supporting our ongoing investigation.”