"………Apparently, based on my recollection from having read it, is that the full weight (new sentencing guidelines) of the EO applies to crimes committed AFTER the EO goes into effect. Imagine if they were stupid enough to eat Pizza at this point.
"(b) Nothing in the MJA shall be construed to make punishable any act done or omitted prior to January 1, 2019, that was not punishable when done or omitted.
(c) Nothing in title LX of the MJA shall be construed to invalidate the prosecution of any offense committed before January 1, 2019. The maximum punishment for an offense committed before January 1, 2019, shall not exceed the maximum punishment in effect at the time of the commission of such offense.""
==
I read it this way:
re (b) If it wasn't illegal (punishable) before Jan 1 2019, the revisions in the MJA don't magically make something done prior to Jan 1 2019 punishable now.
If something that wasn't punishable before Jan 1 2019 becomes punishable on/after Jan 1, and the crime is committed on/after Jan 1 - then the new rules kick in.
re (c) If someone was already in the process of being prosecuted prior to January 1 2019, the sentencing guidelines that were in effect prior to Jan 1 2019 will apply to the case.
In order words the changes that went into effect on Jan 1 2019, apply only to those arrested prosecuted on/after Jan 1 2019.
At least that's the way I read it…