A man who laced sweets with tranquilliser and provided them to minors at a youth camp in the area has admitted sexual crimes against two young males who were nine and 10.
The accused was taken into custody after eight minors and an older person became sick at the facility in July.
The elderly man, from the Nottinghamshire area, pleaded guilty to a series of 17 offences when he stood at Leicester Crown Court on Friday.
Yet, he disputed one particular crime he was charged with, which was against a nine-year-old child.
The accused was remanded in custody before a additional proceeding on November 28th.
'Sweet game'
The prosecutor, handling the case, described Ruben's offending to the judicial body.
She said his those affected were disadvantaged youngsters who were attending a summer camp which he ran.
The man conducted a "treat game" with the minors, the legal counsel said, in which he would go into the sleeping quarters when they were settling down and request they to eat sweets "as quickly as they can".
She told the court the man had conducted this practice with the young males "for many years", and youngsters had earlier experienced illness the following morning.
She said the man had been capable of justifying this repeatedly as the children being "overexcited from fun", until his stepchild had suspicions in recently.
Mrs Prior KC continued: "Recently" his stepchild had concerns about the situation, with valid cause.
"They decided to examine in the defendant's belongings."
The legal counsel said materials including lubricant, ointment and injection devices were discovered, and his stepson alerted the police about his concerns.
She explained Ruben went on to conduct the "treat game" with six children that night - that Saturday - and they were everyone unwell the next day.
"Law enforcement" had not gone out by that time," she continued.
The oversight body, the investigative body, had stated that it was reviewing Leicestershire Police's handling of the incident.
The legal representative said the minors were unable to walk properly due to being ill, so Ruben's stepson notified the authorities a second time.
She said the defendant then conducted the "treat game" in a area of five children.
