Two recently-fledged peregrines were found poisoned on the Scottish Wildlife Trust’s Longhaven Reserve, Aberdeenshire, in July 2004. They were found by two climbers and tests proved they had been poisoned by eating from a pesticide-laced bait.
Police wildlife crime officer, George Sangster, said peregrines had been the victims of illegal persecution for many years, and he and his colleagues had seen “a worrying trend in the last few years in the north east of Scotland, with an increase in the persecution of peregrines”. Full story: http://news.bbc.co.uk/1/hi/scotland/3896793.stm
Six years later, not much has changed. According to a 2009 RSPB report, recent estimates suggest that 27% of nests in southeast Scotland, 24% of nests in northeast Scotland and over 10% of examined sites in Cumbria were subject to interference or killing. More info: http://www.birdguides.com/webzine/article.asp?a=1674
Raptor Persecution UK 