Below is information from the NFLPA web site on what happens to players charged with a crime.
Persons Charged With Criminal Activity
Any Covered Person arrested for or charged with conduct prohibited by this policy will be required to undergo an immediate, mandatory clinical evaluation and, if directed, appropriate counseling. Such evaluation and counseling must be performed under the direction and supervision of the NFL Vice President of Player and Employee Development. Failure to cooperate with evaluation and counseling (including being arrested for or charged with additional criminal activity during the evaluation and counseling period) shall itself be conduct detrimental to the National Football League and shall be punishable by fine or suspension at the discretion of the Commissioner.
The next portion comes from the NFL Policy and Program for Substances of Abuse
III. Discipline for Alcohol-Related Violations of Law or Abuse of Alcohol.
A. Abusive Consumption.
Although alcoholic beverages are legal substances, when consumed abusively they can
produce or contribute to conduct that is unlawful and threatens the health and safety of
players and other persons. Such conduct is detrimental to the integrity of and public
confidence in the NFL and professional football. In addition, the abusive consumption of
alcoholic beverages may indicate a substance abuse problem that requires medical
B. Alcohol-Related Offenses.
The Commissioner will review and may impose a fine, suspension, or other appropriate
discipline if a player is convicted of or admits to a violation of the law (including within
the context of a diversionary program, deferred adjudication, disposition of supervision,
or similar arrangement including but not limited to nolo contendere) relating to the use of
alcohol. Absent aggravating circumstances, discipline for a first offense will generally be
a fine of two-seventeenths (2/17) of the amount in Paragraph 5 of the NFL Player Contract to a maximum of $50,000. If the Commissioner finds that there were aggravating circumstances, including but not limited to felonious conduct or serious injury or death of third parties, and/or if the player has had prior drug or alcohol-related misconduct, increased discipline up to and including suspension may be imposed. Discipline for a second or subsequent offense is likely to be a suspension, the duration of which may escalate for repeat offenses.