The searches yesterday didn’t recover anything of interest to the investigation team, but enquires remain very much ongoing into Nicola’s disappearance in December 1991.
Two men, both aged 49 and a 51-year-old woman who were arrested in December 2013 in connection with the investigation, remain on police bail while enquiries are ongoing.
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A man, reportedly armed with a knife and a baseball bat, was detained close to the event and police cleared the area as a precaution.
Tens of thousands of people are expected to line the streets this weekend.
Courses will begin in September next year.