An individual who spiked sweets with sleeping medication and provided them to youngsters at a summer program in the area has admitted sexual offences against two boys both nine and 10.
The accused was detained after eight youngsters and a grown-up fell ill at the location in mid-summer.
The elderly man, from that region, admitted guilt to a series of 17 offences when he stood at the courthouse on Friday.
Nevertheless, he refused to admit one of the sexual offences he was accused of, which was involving a nine-year-old child.
The defendant was held in detention ahead of a subsequent court date on late November.
'Sweet game'
The legal representative, handling the case, outlined the defendant's actions to the judicial body.
She said his victims were disadvantaged youngsters who were attending a summer camp which he ran.
Ruben played a "treat game" with the minors, the legal counsel stated, in which he would enter the sleeping quarters when they were getting ready for bed and tell them to eat sweets "as fast as possible".
She told the court the man had conducted this practice with the boys "over an extended period", and children had earlier experienced illness the subsequent day.
She stated Ruben had been able to explain this repeatedly as the minors being "overexcited from fun", until his family member had suspicions in recently.
The prosecutor continued: "This year his stepson had suspicions about what was going on, for good reason.
"They chose" to examine in the man's possessions."
Mrs Prior KC said objects including baby oil, ointment and medical needles were located, and his stepson alerted the authorities about his worries.
She stated the defendant continued to conduct the "sweet game" with six youngsters that night - that Saturday - and they were all sick the next day.
"Law enforcement" had not responded by that stage," she continued.
The oversight body, the Independent Office for Police Conduct, earlier informed that it was reviewing Leicestershire Police's handling of the events.
The legal representative stated the youngsters were unable to walk properly due to being ill, so the family member notified the police again.
She said the man then played the "sweet game" in a area of five children.
