100 drug incidents spoil the fun at RockNess festival
Cocaine and heroin was among the haul and a number of festival-goers were arrested for being in possession with intent to supply.
Overall police chiefs said they were delighted with the "family atmosphere" at the RockNess festival on the shores of Loch Ness. More than 35,000 people danced the day away, with opening act Ms Dynamite setting the scene.
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Hide AdIt was a homecoming of sorts for the star, above, whose mother comes from Benbecula.
The Mercury Prize, Mobo and Brit winner said: "In childhood I used to come up here a lot. I'm not coming up so often these days, but that's nothing to do with losing that connection - it's because my job consumes my life.
"My mum's side are all Scottish and I've got cousins dotted all over Scotland, from Edinburgh to Skye and Benbecula, where my mum comes from."
Northern Constabulary Superintendent Stevie Mackay said: "After the work we had done before the festival, it is disappointing so many have been found with drugs. It is a matter of grave concern."