Why are movements during an epileptic seizure generally not treated as criminal acts?

In criminal law, a fundamental requirement for establishing a crime is the presence of actus reus, which is defined as a voluntary act or omission.

Movements occurring during an epileptic seizure are not considered criminal acts because they lack the essential element of voluntary human behaviour. Because these movements are involuntary, they do not satisfy the legal definition of an act required to establish criminal liability, even if they result in harm to another person.1