Saying the boy and his mother had fled their community in Kabin Buri district, thus demonstrating the boy’s guilt, the parents want the youngster apprehended and interrogated in front of a multidisciplinary committee.
District police superintendent Pol Colonel Wanchai Pitaktansakul said evidence was being gathered.
The parents of the girl, two years and 10 months old, filed a police complaint on May 23, two days after discovering an infection in her genitalia.
A Kabin Buri Hospital doctor concluded the infection had resulted from sexual violation and the girl put the blame on her 11-year-old cousin, who lived in the same neighbourhood.
“I pity my daughter for having undergone such a trauma at such a young age,” the girl’s 32-year-old father said. “I want the police to bring the attacker to justice and I won’t show him any leniency, even though we are related.”