Fuck no. I'm assuming that a lot of this is due to Casey Anthony? And, even though that's very much a local story, and even though she's very much a local criminal.. still no.
HOWEVER - I'd encourage criminals to write books and memoirs, and make movies, and whathaveyou. Mostly because I believe that any 'profit', and any 'sales' or 'proceeds', should go to the State/Department that prosecuted the criminal, if the criminal wasn't already sued or charged with 'paying the state and tax-payers back'. But not even the State/Department, if people are too picky - as we know that the less-crime-filled states would start to complain.. Have all profit go to the Country deficit/debt, then.
At the same token, this is one of those 'in a perfect world' things - as this would never happen. Just like the major corporations will still get the bailouts, most more than once, even. Just like tax cuts will always be perceived as unfair.
Just my two-cents, though.
I think everybody should have the chance to learn from, or just take from, the criminals - especially if the criminal has learned something, themselves, or 'become a better person'. Fact is, jail-time can drastically change a person - better or worse - and I think everybody has a right to talk about, write about, and share their experiences; especially if somebody else can learn something from it. I do not think, though, that there should EVER be monetary profit from committing a crime - no matter how small. Your profit, as a criminal (if going strictly by the question, and being 'after serving jail-time'), is the fact that you're no longer in jail; or the fact that you can see your book or movie sales (because you'd know, if you are printing more, seeing the orders, etc), the fact that you can share your story (should you choose to).
Perhaps the only way for this to work would be that, when going to prison, and/or getting let out, this would be one of those conditions or agreements. 'Any profit from this point forward from anything dealing with my life, my story, my experiences up until this point, etc..'.. would be awarded to the state, department, and/or the country..