Criminology
Non-consensual voyeurism is considered to be a form of sexual abuse. When the interest in a particular subject is obsessive, the behaviour may be described as stalking. The United States FBI assert that some individuals who engage in "nuisance" offences (such as voyeurism) may also have a propensity for violence based on behaviours of serious sex offenders. An FBI researcher has suggested that voyeurs are likely to demonstrate some characteristics that are common, but not universal, among serious sexual offenders who invest considerable time and effort in the capturing of a victim (or image of a victim); careful, methodical planning devoted to the selection and preparation of equipment; and often meticulous attention to detail.Little to no research has been done into the demographics of voyeurs. Legal status
Voyeurism is not a crime at common law. In common law countries it is only a crime if made so by legislation. In Canada, for example, voyeurism was not a crime when the case Frey v. Fedoruk et al. arose in 1947. In that case, in 1950, the Supreme Court of Canada held that courts could not criminalise voyeurism by classifying it as a breach of the peace and that Parliament would have to specifically outlaw it. On November 1, 2005, this was done when section 162 was added to the Canadian Criminal Code, declaring voyeurism to be a sexual offence when it violates a reasonable expectation of privacy.
Voyeurism has also been linked with obsessive–compulsive disorder (OCD). When treated by the same approach as OCD, voyeuristic behaviours significantly decrease. Treatment
Professional treatment
Historically voyeurism has been treated in a variety of ways. Psychoanalytic, group psychotherapy and shock aversion approaches have all been attempted with limited success. There is some evidence which shows that pornography can be used as a form of treatment for voyeurism. This is based on the idea that countries with pornography censorship have high amounts of voyeurism. Additionally shifting voyeurs from voyeuristic behaviour, to looking at graphic pornography, to looking at the nudes in Playboy has been successfully used as a treatment. These studies show that pornography can be used as a means of satisfying voyeuristic desires without breaking the law. Voyeurism has also been successfully treated with a mix of anti-psychotics and antidepressants. However the patient in this case study had a multitude of other mental health problems. Intense pharmaceutical treatment may not be required for most voyeurs.There has also been success in treating voyeurism through using treatment methods for obsessive compulsive disorder. There have been multiple instances of successful treatment of voyeurism through putting patients on fluoxetine and treating their voyeuristic behaviour as a compulsion. Techniques
The increased miniaturisation of hidden cameras and recording devices since the 1950s has enabled those so minded to surreptitiously photograph or record others without their knowledge and consent. The vast majority of mobile phones, for example, are readily available to be used for their camera and recording ability.