Is it Possible to Be Convicted of a Sex Offense But Not Have to Register as a Sex Offender?
The answer is yes, sometimes. There are circumstances where -- despite a conviction for a sex offense -- the defendant would never have to register. If you represent criminal defendants accused of sex crimes, or you are facing a possible sex charge, and you don't know when that would occur, please go to Is it possible to be convicted of a sex crime but not have to register as a sex offender? .
And keep in mind how royally screwed up Oregon law is. In Oregon, an 18 year old who has sex with a 14 year old may not have to register as a sex offender. But everything else being equal, a 20 year old who has sex with a 17 year old might. This nonsense is a side effect of the Oregon Court of Appeal's decision in State v. Stamper. Details can be found at the link above.
The continuing validity of Stamper is being considered by the Oregon Supreme Court in a case called State v. Ofodrinwa. That case was argued in January, 2012. No opinion yet. Let's hope that the justices do the right thing.