A 95-year-old woman with dementia is in critical condition after she was tasered by police at an aged care home in the NSW Snowy Mountains.

Officers were called to the Yallambee Lodge in Cooma after staff found Clare Nowland armed with a knife, which they struggled to disarm.

The homicide squad is now investigating this case, Ben Fordham exclusively revealed.

The male officer who tasered Clare, who has been in the force for at least 10 years, has now been interviewed and drug tested.

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