The Wildlife and Natural Environment (Scotland) Bill 2011 was brought in to deal with landowners and managers who turn a blind eye to employees committing offences against wild birds on their land.
It came into force on January 1st last year and sentences can include fines and imprisonment.
"Any incident of illegal poisoning of birds of prey is one too many, however these latest figures represent the most substantial progress on this issue for many years.
"We are encouraged that these reported and confirmed incidents of illegal poisoning indicate a further decline in cases, building on progress in the figures for the previous two years.
"Both RSPB Scotland and Scottish Land & Estates are not complacent about this issue, however, and there will be no let-up in our joint efforts to eradicate illegal poisoning, and all other forms of wildlife crime."
Anyone who finds a dead bird of prey, and suspects it may have been poisoned, is asked to contact police.
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