Nguyen Duc Manh,director of the Institute for Population, Family and Children, said thelack of such a definition created many obstacles in implementing thelaw, as violators found loopholes to deny responsibility.
"This is one of the main reasons why sexual abuse of children is increasing," he said.
Thenumber of rape cases where the victim was a child has been steadilyrising, with 550 cases in 2011, 603 last year and 704 this year,according to the Supreme People's Court.
The court judged more than 1,100 cases of child sexual abuse in 2011, 1,400 last year and 1,800 this year.
Manh said the law also failed to specify what organisations should do to prevent child sexual abuse and help the victims.
"Withoutsuch regulations, organisations cannot legally join hands with statemanaging agencies and non-governmental organisations in the field," hestressed.
Nguyen Dinh Ton, an expert from the Viet NamAssociation for Protection of Children's Rights, suggested that the lawshould state that social organisations had the right to conductdissemination activities and protect, care for and educate children, aswell as contribute ideas to local authorities about protecting them.
"Withsuch rights, organisations can call on all of society to participate inthe struggle against child sexual abuse," Ton said.-VNA