Child grooming is befriending and establishing an emotional connection with a minor under the age of consent, and sometimes the child's family, to lower the child's inhibitions with the objective of sexual abuse. Child grooming is also used to lure minors into various illicit businesses such as child trafficking, child prostitution, cybersex trafficking, or the production of child pornography. Such behaviour has been proscribed in various ways since the International Convention for the Suppression of the Traffic in Women and Children, which was agreed upon in 1921 as a multilateral treaty of the (now defunct) League of Nations and addressed the problem of international trafficking of women and children. The proscribed traffic was international at that time. The concept of localised grooming, in which gangs groom neighbourhood victims, was defined in 2010 by the UK Child Exploitation and Online Protection Centre. Characteristics To establish a good relationship with a child and the child's family, child groomers might do several things: They might try to gain the child's or parents' trust by befriending them, with the goal of easy access to the child. A trusting relationship with the family means the child's parents are less likely to believe potential accusations. Child groomers might look for opportunities to have time alone with the child, which can be done by offering to babysit; the groomers may also invite the child for sleepovers, for opportunistic bed sharing. They might give gifts or money to the child in exchange for sexual contact, or for no apparent reason. Commonly, they show pornography to the child, or talk about sexual topics with the child, hoping to make it easy for the child to accept such acts, thus normalizing the behavior. They may also engage in hugging, kissing, or other physical contact, even when the child does not want it. Suspected offenders have used the so-called "fantasy defense", the argument that they were only expressing fantasies and not plans of future behavior, to defend actions such as online communication. In the U.S., case law draws a distinction between those two and some people accused of "grooming" have successfully used this defense. Over the internet Sexual grooming of children also occurs on the internet. Some abusers (sometimes posing as children themselves) chat with children online and make arrangements to meet with them in person. Online grooming of minors is most prevalent in relation to the 13–17 age group (99%