AO3. Offending behaviour runs in families, so this could prove Sutherland's theory that we learn attitudes and behaviours from them. However, It can be argued that this is biological. Raine ( 1993 ) found that monozygotic twins had a 52 % concordance rate for offending behaviour, whereas dizygotic twins had a 21 % concordance rate. This suggests a genetic basis. However, it could be a combination. Mednick studied adoptees and found that 20 % of adoptees had a record if their bio parents did, and 25 % if both bio and adoptive did