Susan Stuart, pictured, was filmed by secret camera stealing cash from the handbag of an elderly client she was supposed be helping in Plymouth
This video shows a trusted carer stealing from an 86-year-old woman after a secret camera was set up by her relatives.
Sisters Jodie Faith-Brown and Marie Cole hid the camera in their grandmother's bedroom to unmask Susan Stuart as a thief.
Stuart, 60, was repeatedly filmed going into widow Debbie Faith's purse when her back was turned.
She denied stealing £30 between December 2017 and February last year but was convicted by a jury after a trial at Plymouth Crown Court.
After the verdict she was branded 'scum' by her victim's granddaughters who helped bring her to justice by setting up the secret recording.
Plymouth Crown Court heard how Stuart pilfered cash from the victim's handbag while her back was turned.
But she was spotted repeatedly going into her purse on footage from a camera hidden in Mrs Faith's bedroom by her family.
Stuart, who had been caring for the widow in her home for years, was also caught with a £5 note marked by police.
She claimed that Mrs Faith had given her permission to go into her purse so she could run errands such as posting packages.
A judge released Stuart on bail until sentencing on a date to be fixed with a probation report.
Judge Paul Darlow said: 'This is the theft of small sums of money but it is in gross breach of trust.'
Stuart was one of four carers from the company Caremark which visited Mrs Faith every day.
She was suspended and has since resigned.
Ms Faith's family set up a hidden camera which filmed Stuart, pictured, rummaging through her client's handbag after she stood up to leave the room
The video footage showed Stuart allowed Ms Faith to leave the room unaided and without the use of her walker - increasing the risk of the pensioner suffering a fall
Debbie Faith, pictured with her grand daughters Marie Cole, left, and Jodie Faith-Brown, right, was ripped off by her carer who had worked in her home for four years
Footage shown to the week-long trial from a camera hidden on a dressing table showed Stuart repeatedly going into the purse, though she did not take cash on every occasion.
She twice allows Mrs Faith to leave the room in her home in Plymouth, Devon, unaided using her walker - risking a fall.