Is this true? Is a valid defense in court "your honour, I'm afraid that while I have broken the law, the prosecution should have ignored it according to their own policies?"
No. The Principles of Federal Prosecution (Title 9 of the Justice Manual) make very clear you can't litigate whether a prosecutor is following DOJ's internal policies - that's between the Assistant US Attorney, the US Attorney, and the Attorney General.
‘It Depends’. It can be a valid defense that the law is not actually prosecuted normally and you’re being singled out. That would require proving however that the prosecutors did actually know of and refuse to prosecute most others.
‘Making an example of someone’ that they happen to catch (and being terrible at catching most people) is still perfectly fine however. So good luck with that.
> It can be a valid defense that the law is not actually prosecuted normally and you’re being singled out.
My understanding is that in the US "singling out" specific criminals is perfectly OK for the prosecution to do (well, legally speaking, I'm not saying it's ethical or won't get them in trouble with voters).
(Again, given you aren't singling them out because of a protected class like race, sex, etc)
Again, ‘it depends’. You’re generally correct, but ‘bills of attainders’ laws (aka targeting specific individuals) along with the ‘equal protection before the law’ clauses make it unconstitutional to target specific individuals instead of classes of behavior, and that is the general theory behind it not being ok to do true selective enforcement (aka Bob gets charged for something Joe does openly all the time).
Like pointed out in a sibling thread though, essentially impossible to prove, let alone get anyone to care about, and useless as a defense unless someone is being stupidly blatant about it.
Ken White (Popehat, a former prosecutor) and Josh Barro had a podcast for several years about the legal travails of the Trump administration, a theme of which might have been "you are never going to win a defense based on selective prosecution, just put it out of your mind."
>"your honour, I'm afraid that while I have broken the law, the prosecution should have ignored it according to their own policies?"
No, but I'm having a hard time finding a reference now :/ You may be able to argue malicious prosecution, in which that may be a piece of evidence. The bar for MP is quite high though.
Another far-fetched strategy would be to argue that, because of the government's inconsistency about how the law is applied, the law itself might be unconstitutionally vague.[0] This is not legal advice, though.
