There are other allegations of negligence that can be levied against an employer (like a lack of supervision) but these three examples illustrate the fact that the keeping of accurate records is still an important tool in defending a common law claim and reducing the employer’s risk in any subsequent litigation.
In the first case, keeping accurate records that show whether a piece of machinery/equipment was regularly serviced or there was a schedule of regular inspections would be useful.
Although allegations of mechanical or other failures bring into play expert opinion evidence (like an engineer), keeping of accurate records will assist that expert when it comes to offering up an opinion.
As for the last area, training attendance records and registers should be maintained. Another area to consider is whether the content of a training course can be preserved in some permanent form as that may well offer an insight into exactly what took place at the training course (like the course slides, a copy of the video presentation or photographs of the practical demonstrations).
The downside to a failure to keep and maintain accurate records is that one may have to solely rely on a person’s recollection. Given the passage of time between when an accident occurs and when a case comes to trial, memories will often fade. Further,
a witness may have left the employer and cannot be found. A person’s memory may not be refreshed if there is no document to refer them to.
In the end, and in the case of a conflict in the evidence, the court will have to make findings of fact based on the credibility of witnesses and whose recollection of the events is more accurate.