Victimisation (or victimization) is the state or process of being victimised or becoming a victim. The field that studies the process, rates, incidence, effects, and prevalence of victimisation is called victimology. Peer victimisation Peer victimisation is the experience among children of being a target of the aggressive behaviour of other children, who are not siblings and not necessarily age-mates. Secondary victimisation Secondary victimization (also known as post crime victimization or double victimization ) refers to further victim-blaming from criminal justice authorities following a report of an original victimization. Revictimisation The term revictimisation refers to a pattern wherein the victim of abuse and/or crime has a statistically higher tendency to be victimised again, either shortly thereafter or much later in adulthood in the case of abuse as a child. This latter pattern is particularly notable in cases of sexual abuse. While an exact percentage is almost impossible to obtain, samples from many studies suggest the rate of revictimisation for people with histories of sexual abuse is very high. The vulnerability to victimisation experienced as an adult is also not limited to sexual assault, and may include physical abuse as well. Reasons as to why revictimisation occurs vary by event type, and some mechanisms are unknown. Revictimisation in the short term is often the result of risk factors that were already present, which were not changed or mitigated after the first victimisation; sometimes the victim cannot control these factors. Examples of these risk factors include living or working in dangerous areas, chaotic familial relations, having an aggressive temperament, drug or alcohol usage and unemployment. Revictimisation may be "facilitated, tolerated, and even produced by particular institutional contexts, illustrating how the risk of revictimization is not a characteristic of the individual, nor is it destiny." Revictimisation of adults who were previously sexually abused as children is more complex. Multiple theories exist as to how this functions. Some scientists propose a maladaptive form of learning; the initial abuse teaches inappropriate beliefs and behaviours that persist into adulthood. The victim believes that abusive behaviour is "normal" and comes to expect, or feel they deserve it from others in the context of relationships, and thus may unconsciously seek out abusive partners or cling to abusive relationships. Another theory draws on the principle of learned helplessness. As children, they are put in situations that they have little to no hope of escaping, especially when the abuse comes from