One of the best things the JWs could do is make sure they are well educated on how to spot inappropriate behavior. As alluded to earlier, inapropriate touching and seeing how far he can get is one of the first moves a pedophile will make to try to set up a situation where he can offend again. ALL Jws should be aware of this so they can identify and prevent problems before they get very far.
The Catholic Church has really learned their lesson from their past problems. The JWs could learn from them. They now have mandatory films and classes for all parishioners who deal with children or other vulnerable populations through the church. Since JWs do this in field service, all of their publishers should be educated too. And the posters who said call the police first are right. Consulting with elders and NY on how to best prevent a scandal and then do only what they are legally "required" to do is pitiful and creates an environment that allows these problems to flourish.
If the WT was really concerned about preventing scandal, they would implement reforms as soon as possible. Refusing to do so not only allows their members to be hurt, it also ruins their own reputation and increases their own risk. The WT is really creating their own problems in handling this issue.