[caption id="attachment_6333" align="alignleft" width="210"] Rep. Jeff Irwin[/caption] Michigan Rep. Jeff Irwin (D-Ann Arbor) introduced a bipartisan bill Wednesday that would decriminalize small amounts of marijuana. Currently, possession of any amount of marijuana in Michigan could result in a year in jail and a fine of up to $2,000 . House Bill 4623 would re-label the offense as a civil infraction punishable by a fine based on whether it was a repeat offense. [caption id="attachment_6334" align="alignright"…