I must have missed you're list.
Jeremy's crime was against his family. Julie told the police about it.
Susan Battersby's minor cheque book fraud in 1984 was immature teenagers. So I do not see why see should lead to committing such serious perjury.
And it sounds as if you may not know that £700 ish amounted to a months salary. Julie FORGED her friend's signature and DEFRAUDED the bank. If you believe that robbing his family, of what was PARTLY his anyway, shows a propensity for crime in Jeremy, why does it not occur to you that a crime that was entirely Julie's idea, doesn't show the same propensity. At the very least it shows a capability of deviousness which, naturally, makes me question what she later said of Jeremy, yet YOU dismiss it as the work of "immature teenagers." I believe she may have been 20................and a deviously clever 20, at that.