Deportation from the US?

This is more of an inquiry than a question, but does anyone out there know for what crimes committed by a legal resident of the US (non-citizen) brings in the rule of deportation? This is part of a discussion I am involved in and I ain't to sure of the answer, except for the main one of crimes against children, murder and so on. Anyone out there no what it is or where I can find the list if there is such a thing? Also part of it is also, if one gets incarcerated in a County, State or Federal prison for either a misdemeanor or felony what is the maximum stay is there is one before Deportation is considered? Thanks for any help on this one!