(Posted in 2 parts):
'Threatening behaviour' is covered by Section 4 of the Public Order Act, 1986. The following is taken from
http://www.freebeagles.org/articles/Legal_Booklet_4/lb4- 12.html
"Section 4 � Fear or Provocation of Violence
A person is guilty if he either
a) uses towards another person threatening, abusive or insulting words or behaviour, or
b) distributes to another person any writing or sign which is threatening, abusive or insulting
and either
i) he intends to cause that person to believe that immediate unlawful violence will be used against him or another by any person or to provoke such immediate violence, or
ii) it is likely that the person will believe that such violence will be used against him, or it is likely that such violence will be provoked."
(Continued below)