A CARE home boss has been found guilty of ill-treating a Ryedale dementia sufferer and three other residents at the home which promised them specialist treatment.

Detectives branded Siobahn Koralewski a female "Darth Vader" after a jury found her guilty on five counts involving ill-treating the four residents.

Teesside Crown Court court heard Kenneth Pinkney, 88, of Norton, Malton, was mocked, humiliated, and physically abused by? Koralewski, now aged 30, at Roundstones care home, in Filey, North Yorkshire,.

She had decided to “take revenge” on Mr Pinkney for lashing out at her mother, 67-year-old Maragret Koralewski, when he became agitated.

She danced around him "waving her breasts in his face" before hauling him out his chair and biting him between the legs, the jury heard.

Former care worker Jennifer Price told Teesside Crown Court: "When Siobahn was dancing around in front of him she took her top off. She had a vest top on underneath.

"She said 'Do you like that you dirty old man?'. She was waving her breasts around in his face."

Koralewski pulled Mr Pinkney out of his chair by the legs. "She sat on top of his stomach, holding his arms down, and started bouncing up and down on his tummy," Ms Price continued.

The court heard Mr Pinkney was screaming for his daughter and trying to get up.

Ms Price said: "Siobahn moved down a bit and bit him and he screamed. She bit him between the legs at the top. She got off him to answer the phone."

She also saw Koralewski ?slap Mr Pinkney three or four times across the face.

Later Koralewski forced Mr Pinkney in the passenger seat of her car and drove him to Cross Lane Psychiatric Hospital in Scarborough.

"When she got back she told me she had fastened his seatbelt really tight and had the window open all the way there so he got cold," added Ms Price.

Siobahn, now 30, and Maragret, now 67, both denied a total of nine charges involving ill-treating the four residents.

Ms Price said she would also see Koralewski preparing mixtures of leftover drinks ?for Elizabeth Hall, 59, who suffered from Downs Syndrome, learning difficulties and dementia.

?She said: "She was making a drink of all the drinks Liz had left - three or four drinks of tea she would not drink during the day.

"Liz was crying because she did not want to drink her drinks. Siobahn put her hand over her mouth and said 'shut up'?."

The court heart Koralewski often pulled Ms Hall by her belt to get her to move.

Prosecutor Nicholas Askins said: "Halfway up the stairs, Elizabeth refused to walk any further.

“So Siobahn pulled her upstairs by the waist. At the top of the stairs, Elizabeth fell to the floor and curled into a ball.

“Siobahn then pushed her along the floor hard with her foot to her bedroom door.”

On another occasion, she stuffed toilet paper in her mouth to make her shut up.

Ms Price also claimed that when dealing with stroke victim Harold Waller, 91, who was supposed to be guided patiently along on his zimmer frame, Koralewski walked with him "with her knee driving him forward while she held him up,"

"He used to be shaking and worried about falling," she added.

Siobahn's brother Jeremy, said: "Elizabeth Hall used to hide in her bedroom and ask 'Is Siobahn here today?' if she was, she would not come out."

Mrs Koralewski snr had acquired the home, called Roundstones, in Filey, North Yorkshire, with her husband Raymond in 2004. Siobahn worked there as a senior carer and deputy manager.

Mr Askins continued: “The home held itself out as having particular expertise in the care of those with dementia.

“Each of the four victims lacked capacity – they were unable to make decisions for themselves about their own care. The prosecution case is the defendants deliberately ill-treated them.

“They were singled out because of their difficulties, the defendants believing, with good reason, that they would be unable to do anything about the ill-treatment.”

The court heard the other victim was dementia sufferer Joan Normington, aged 92, who Siobahn was seen to “frogmarch” to her room on a number of occasions.

Once, Siobahn pulled Joan out of her chair by the wrist and dragged her to her room.

In November 2012, police went to the Roundstones and arrested both mother and daughter.

Siobahn, now 30, and Maragret, now 67, both denied a total of nine charges involving ill-treating the four residents.

Yesterday after a seven day trial Siobhan? showed no emotion- and continued to chew gum in the dock both before and after the jury found her guilty on five counts.

?Maragret was cleared of all four charges against her? but continued to sit grim-faced by her daughter until the younger woman was bailed to appear back at the Crown Court for sentence on December 19.

Judge Howard Crowson told Siobahn he was adjourning sentence for probation service reports, adding: "These cases sometimes attract prison sentences. ?It's not inevitable. But you must be aware that that is a possibility."

Det Sgt Mike Moorhouse said after the verdicts: "The evidence suggests she was a Darth Vader?-type character within the home to residents and staff who were not in favour with her.

?"She was quite a menacing character. This menacing conduct spilled over into assaults and degrading behaviour towards the residents."

He praised the whistle-blowers ?- Siobahn's brother Jeremy, who worked as a cook at the home, and his partner Jennifer Price, who was a care worker.

Both lost their jobs and ended up at loggerheads with the Koralewski family after raising the alarm.

Det Sgt Moorhouse added: "It's important to acknowledge their bravery and courage. It was at great cost to themselves personally that they ensured the safety and welfare of the residents."