A person who spiked candy with sedative and distributed them to youngsters at a youth camp in the region has confessed to sexual offences against two boys who were between nine and ten.
The defendant was arrested after eight children and a grown-up fell ill at the facility in July.
The senior citizen, from the Nottinghamshire area, pleaded guilty to a multiple criminal counts when he was present at the judicial center on recently.
However, he refused to admit a single sexual charge he was facing, which was concerning a nine-year-old boy.
Ruben was remanded in custody ahead of a further hearing on late November.
'Sweet game'
The prosecutor, handling the case, detailed the criminal behavior to the court.
She stated his targets were disadvantaged youngsters who were staying at a summer program which he operated.
The defendant conducted a "sweet game" with the minors, the prosecutor said, in which he would access the children's bedrooms when they were getting ready for bed and tell them to ingest treats "as fast as possible".
She stated to the judge the defendant had conducted this practice with the children "repeatedly", and youngsters had previously become sick the subsequent day.
She said Ruben had been able to explain this repeatedly as the youngsters being "overwrought by enjoyment", until his family member had worries in recently.
The prosecutor continued: "This year his stepson had worries about the activities, with valid cause.
"They decided to examine in the defendant's belongings."
The legal counsel explained objects including baby oil, ointment and syringes were found, and his stepson alerted the authorities about his suspicions.
She explained the defendant proceeded to engage in the "sweet game" with six children that night - Saturday 26 July - and they were everyone unwell the following morning.
"Law enforcement" had not responded by that point," she continued.
The police watchdog, the investigative body, previously told that it was examining the police response of the events.
The prosecutor stated the minors were having difficulty walking due to being ill, so the stepson called the authorities again.
She explained Ruben then conducted the "candy game" in a space of five youngsters.