“(3) An action to which this section applies shall not be brought after the expiry of the period applicable in accordance with sub-section (4)….(4) … [T]he period applicable is three years from –(a) the date on which the cause of action accrued; or(b) the date of knowledge (if later) of the person injured.”
“For the purposes of this section an injury is significant if the person whose date of knowledge is in question would reasonably have considered it sufficiently serious to justify his instituting proceedings for damages against a defendant who did not dispute liability and was able to satisfy a judgment.”