Daniel Darkwa, who is blind, was charged with defilement.
He pleaded guilty and the court presided over by Ms Patricia Quansah convicted him on his own.
The convict is said to have told the court that it was the victim who suggested the act and forced herself on him.
Prosecuting, Deputy Superintendent of Police (DSP) Sarah Acquah told the court that the complainant was a social worker of Orphan Aid Africa, a non-governmental organisation at Dodowa, in the Greater Accra Region.
The Prosecution said Darkwah resided in a foster home in Madina. On July 1, this year, at about 1730 hours, there was black out in the home and all the inmates of the home went out leaving the victim and her twin sister in a living room.
DSP Acquah said Darkwah who was then in a nearby house, went into the living room and sent the twin sister to go and buy him a locally made drink known as Sobolo.
The Prosecution said the convict escorted the victim’s sister out of the compound and returned to where the victim was sleeping.
According to prosecution, Darkwah retuned and found the victim lying in a supine position and he took advantage of that and defiled her.
The Prosecution said when the victim attempted to shout for help, Darkwah closed her mouth with his hand.
When the victim’s sister returned from her errand and knocked the door, Darkwah opened the door and left.
The victim informed her sister about her ordeal. Later the victim and her sister informed the mother of the Home who also reported the incident to the Police.