British Columbia, Canada
The following excerpt is from Cannon v. Clouda, 2002 BCPC 26 (CanLII):
An exception to that law is where the leading driver suddenly and unexpectedly slows down on a green light, then the failure of the leading driver to exercise due care and attention causes the lead driver to be the sole cause of the accident. (Ayers v. Singh, 1995 B.C.J. No 2842 (B.C.S.C.))
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