A person who laced treats with tranquilliser and distributed them to youngsters at a summer program in the area has confessed to sexual offenses against two boys both nine and 10.
The accused was detained after eight minors and a grown-up experienced illness at the facility in July.
The elderly man, from the Nottinghamshire area, pleaded guilty to a total of 17 charges when he was present at the judicial center on recently.
However, he refused to admit one of the sexual offences he was accused of, which was involving a young boy.
Ruben was remanded in custody ahead of a additional proceeding on late November.
'Treat game'
Mary Prior KC, prosecuting, described the criminal behavior to the judicial body.
She said his targets were children from difficult backgrounds who were staying at a youth camp which he managed.
Ruben conducted a "sweet game" with the children, Mrs Prior said, in which he would go into the boys' rooms when they were getting ready for bed and request they to eat sweets "as fast as possible".
She informed the proceedings Ruben had played this game with the children "over an extended period", and children had earlier experienced illness the subsequent day.
She said the man had been capable of justifying this over a long period as the children being "overstimulated by activities", until his stepson had concerns in July 2025.
Mrs Prior KC continued: "This year his stepson had worries about the situation, justifiably.
"They chose" to have a look in the individual's items."
The legal counsel said objects including lubricant, ointment and medical needles were located, and his stepchild notified the law enforcement about his worries.
She said the man continued to engage in the "sweet game" with six boys that evening - Saturday 26 July - and they were all sick the following morning.
"Law enforcement" had not arrived by that stage," she added.
The police watchdog, the police conduct office, earlier informed that it was investigating Leicestershire Police's handling of the situation.
The prosecutor said the youngsters were having difficulty walking due to their sickness, so Ruben's stepson notified the law enforcement a second time.
She stated the defendant then conducted the "sweet game" in a room of five youngsters.
