Since the two skills co-exist in the same population, environmental and genetic explanations could be ruled out, says Michael Krützen
of the University
of Zurich in Switzerland, proving «beyond
reasonable doubt» that
imitation occurs in the wild.
Several new offences relating to the making or selling
of realistic
imitation guns have been introduced and the maximum sentence for carrying an
imitation gun in public without
reasonable excuse has doubled from six to 12 months.