But people were not unaware of abuse.
The case of Noreen Winchester, a Belfast woman who murdered her abusive father — she was jailed but later granted a royal pardon — brought incest to the attention of the media.
The project also supports families, especially where, for example, a teenage son has sexually abused his sister.
They can also have narcissistic traits.
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The man can be jailed up to two years, fined or caned.