All appeals are dismissed.

The grounds of appeal are examined.

For the reasons indicated in its holding, the lower court acquitted Defendants on the charge of violating the Occupational Safety and Health Act on September 26, 2016, on the ground that there was no proof of crime, on the grounds stated in its reasoning.

Examining the record, the lower court did not err in its judgment by exceeding the bounds of the principle of free evaluation of evidence against logical and empirical rules, or by misapprehending the legal doctrine on the violation of the duty to take safety measures.

Therefore, all appeals are dismissed. It is so decided as per Disposition by the assent of all participating Justices on the bench.