Her decision follows the SNP's national executive committee ruling on Saturday she was ineligible for reselection.
Almost £1M Drugs Haul On Bute
Drugs with an estimated street value of £900,000 have been found on a Scottish island.
Police said they discovered 10kg of herbal cannabis, worth around £100,000, in a van on Monday afternoon in Port Bannatyne on Bute.
Officers stopped the white Renault Trafic van on Marine Road, before then raiding a number of flats in the town's Castle Street where they found a cannabis cultivation containing over 2,000 plants with a potential street value of £800,000.
Three men, two aged 40 and one aged 39, have been arrested and are being held in police custody in connection with the find. A report will be submitted to the procurator fiscal.
Detective Inspector Douglas Wilson, from Dumbarton CID, said: "Drug cultivations and recoveries are not limited to big cities, any town can be affected.
"Information from the local community is something that is vital to the force when tackling drug related crime.''
The charity said almost 440,000 supplies went to children.
The research also said there appeared to be a "weakening'' in support for independence.
The controversial policy was introduced in April as part of wider welfare reforms.
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