A person is guilty of an offence if he—
within the hearing or sight of a person likely to be caused harassment, alarm or distress thereby.
An offence under this section may be committed in a public or a private place, except that no offence is committed where the words or behaviour are used, or the writing, sign or other visible representation is displayed, by a person inside a dwelling and the other person is also inside that or another dwelling.
It is a defence for the accused to prove—
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A person guilty of an offence under this section is liable on summary conviction to a fine not exceeding level 3 on the standard scale.