Leviticus 5:1-7:38

I am so thankful that we do not have to bring animals as sin offerings.  And the sins were things such as touching something that was deemed 'unclean' or another action that you may or may not be aware of at the time.  Since Christ died on the cross for us and made that sacrifice ... was the ultimate sin offering ... we can go to him for atonement.

5:17 "If a person sins and does what is forbidden in any of the LORD's commands, even though he does not know it, he is guilty and will be held responsible." - Ok. I don't understand how this works. How will you know if you are guilty if you don't know what you did?
There are instructions on types of offerings.  Burnt, Grain, Sin, Guilt, Fellowship, they all have very specific instruction on how to handle to ashes, how to dress, etc.  But he did specify what the priests could eat.  The community has always taken care of their priests/spiritual leaders.