Support for cognitive factors is provided by Alvaro and Gibbs (1996) who found that when they measured for cognitive distortions in anti-social young adults there was a strong relationship between the level of anti-social behaviour and minimalisation, indicating that offenders may use minimalisation with negative behaviours. These results clearly demonstrate the presence of a cognitive bias in criminals, and we may be able to look to these biases to understand the cognitive factors that lead to criminality.