I will deal in turn with your points above.
1. Jackie Preece believes very strongly about Jeremy Bamber's innocence and that comes across in some of her posts, particularly where an "anti bamber" poster refuses to answer a direct question or where she is goaded by one or more posters. I am sure that some people have posted deliberately in a way intended to antagonise Jackie in order to get a reaction from her. Your opinion that Jackie has harmed Jeremy Bamber's chances of setting aside his convictions is not one shared by Jeremy Bamber himself. He appreciates all her efforts on his behalf.
2. Jackie's references to Julie Mugford lying are simply a reflection of Jeremy Bamber's case. If Jeremy Bamber is telling the truth, Julie Mugford must have lied. This is a central part of the case as we all know and strong comments by Jackie about Julie Mugford are to be expected in the circumstances and have nothing to do with ego our sour grapes. Anti - Bamber supporters post some damning comments about Jeremy Bamber, as is to be expected considering their views on the case.
3. There is nothing illegal in making contact with a potential witness in Australia or Canada or anywhere else. I have not seen Jackie suggesting anything which would come close to being a criminal offence.
1. Jackie Preece is entitled to her opinion but she should not go around calling people liars on a public forum. Does she not realise that Julie Smerchanski could sue her for libel due to the malicious posts she has made? I wonder does Jeremy know everything that is being said on this forum on his behalf?
Maybe I should write to him too and tell him exactly what is going on?
2. I don't see where you obtain the correlation between Julies evidence and that of Jeremy and especially as you do not have a copy of his statements or his evidence? Julie never said that Jeremy murdered his family. Julie simply told the court what Jeremy had told her, there is a significant difference in these contentions. The anti Bamber posters as you refer to them are entitled to post the truth as corroborated by many individuals as to Jeremy's behaviour prior to the murders and in respect of the guilty verdict following them.
Jackie's comments about Julie Mugford are libellous and you know it ngb1066.
3. The illegality arises when a former senior police officer is being harassed in a campaign to besmirch him within his own community. I am quite sure the authorities will take a dim view of such behaviour.
Definitely a loose cannon!