A man who laced treats with sleeping medication and provided them to youngsters at a summer camp in the area has confessed to sexual offences against two boys aged nine and ten years old.
The defendant was arrested after eight minors and an older person became sick at Stathern Lodge in July.
The senior citizen, from the Nottinghamshire area, pleaded guilty to a multiple criminal counts when he stood at the judicial center on the end of the week.
Nevertheless, he refused to admit a single sexual charge he was accused of, which was concerning a nine-year-old boy.
The accused was held in detention prior to a additional proceeding on late November.
'Candy game'
Mary Prior KC, prosecuting, outlined Ruben's offending to the judicial body.
She stated his victims were disadvantaged youngsters who were staying at a youth camp which he managed.
The man engaged in a "candy game" with the youngsters, the legal counsel said, in which he would enter the boys' rooms when they were getting ready for bed and ask them to consume candy "as quickly as they can".
She stated to the judge the man had conducted this practice with the boys "for many years", and children had previously become sick the following morning.
She said the defendant had been able to explain this over a long period as the youngsters being "overwrought by enjoyment", until his family member had suspicions in recently.
The prosecutor continued: "In the summer" his family member had suspicions about the situation, justifiably.
"They resolved" to have a look in the man's possessions."
Mrs Prior KC said items including baby oil, ointment and injection devices were discovered, and his stepson contacted the law enforcement about his concerns.
She stated Ruben proceeded to engage in the "treat game" with six youngsters that night - Saturday 26 July - and they were everyone unwell the subsequent day.
"Authorities" had not responded by that point," she stated further.
The oversight body, the police conduct office, had stated that it was investigating Leicestershire Police's handling of the events.
Mrs Prior explained the youngsters were having difficulty walking due to their condition, so Ruben's stepson contacted the law enforcement again.
She said the defendant then played the "sweet game" in a room of five minors.