A man who laced treats with tranquilliser and provided them to minors at a youth camp in the area has confessed to sexual offences against two boys who were between nine and ten.
The defendant was detained after eight children and an older person became sick at the location in July.
The senior citizen, from the Nottinghamshire area, pleaded guilty to a multiple criminal counts when he appeared at Leicester Crown Court on Friday.
Yet, he refused to admit one of the sexual offences he was accused of, which was involving a young boy.
The accused was remanded in custody prior to a further hearing on 28 November.
'Treat game'
The legal representative, handling the case, outlined Ruben's offending to the legal proceedings.
She explained his those affected were children from difficult backgrounds who were participating in a youth camp which he ran.
The man engaged in a "treat game" with the minors, the legal counsel explained, in which he would access the children's bedrooms when they were getting ready for bed and tell them to eat sweets "as quickly as they can".
She informed the proceedings Ruben had played this game with the young males "over an extended period", and youngsters had previously fallen ill the next day.
She stated Ruben had been able to explain this repeatedly as the minors being "overstimulated by activities", until his family member had concerns in recently.
Mrs Prior KC continued: "In the summer" his stepson had worries about the activities, for good reason.
"They resolved" to have a look in the individual's items."
The legal counsel stated objects including lubricant, Vaseline and syringes were discovered, and his family member alerted the law enforcement about his worries.
She said the man proceeded to engage in the "candy game" with six children that time - Saturday 26 July - and they were all sick the next day.
"The police had not arrived by that stage," she added.
The oversight body, the police conduct office, previously told that it was examining the police response of the events.
The legal representative stated the youngsters were having difficulty walking due to being ill, so Ruben's stepson called the police once more.
She explained Ruben then engaged in the "candy game" in a space of five youngsters.
