A person who contaminated sweets with sedative and gave them to children at a summer program in the area has pleaded guilty to sexual offences against two young males aged nine and ten years old.
The defendant was arrested after eight youngsters and an older person fell ill at the location in July.
The 76-year-old, from the Nottinghamshire area, pleaded guilty to a total of 17 charges when he stood at Leicester Crown Court on recently.
Nevertheless, he denied one particular crime he was facing, which was against a young boy.
The defendant was held in detention prior to a additional proceeding on 28 November.
'Treat game'
The legal representative, prosecuting, outlined the criminal behavior to the court.
She stated his victims were disadvantaged youngsters who were staying at a youth camp which he ran.
The man conducted a "treat game" with the minors, the legal counsel stated, in which he would go into the boys' rooms when they were getting ready for bed and ask them to eat sweets "as quickly as they can".
She told the court Ruben had conducted this practice with the young males "for many years", and youngsters had earlier experienced illness the following morning.
She stated Ruben had been capable of justifying this for many years as the children being "overwrought by enjoyment", until his stepson had concerns in recently.
Mrs Prior KC continued: "Recently" his stepchild had suspicions about what was going on, for good reason.
"They chose" to examine in the individual's items."
The legal counsel said materials including infant oil, ointment and syringes were located, and his stepchild alerted the authorities about his suspicions.
She explained the defendant proceeded to engage in the "treat game" with six children that time - that Saturday - and they were all ill the following morning.
"The police had not gone out by that stage," she added.
The police watchdog, the Independent Office for Police Conduct, previously told that it was examining Leicestershire Police's handling of the events.
Mrs Prior stated the youngsters were having difficulty walking due to their condition, so the family member called the police a second time.
She said Ruben then conducted the "candy game" in a space of five children.
