For some sex crimes such as statutory sexual seduction, whether or not the victim consented does not matter.
For others like rape, a lack of consent is the heart of the crime. If the victim consented, there is no sexual assault.
Consent can be a difficult aspect of a case to evaluate because many factors-much more than a verbal “yes” or “no”- are involved. A sex crimes defense lawyer with experience in these cases will understand how to best present the consent defense and convey the pros and cons to you of doing so.