Dunn's trial does not, initially, go well for the police due to tainted evidence - the washing line that supposedly strangled Julie as planted. Also an alibi turns up and a Not Guilty verdict seems likely. However the alibi cannot account for Dunn's whereabouts at the time of the murder and there is mention of a blue sherry bottle supposedly used in the murder. The hunt is on to find that bottle and hopefully use it as evidence.
—don @ minifie-1