OK - I'm not sure my US Code cite is correct, but it is a federal crime to use excessive force under color of law. If the cops did testify that they put themselves on duty - they might have really screwed themselves federally.
Here's a brief summary -
http://www.fbi.gov/hq/cid/civilrights/color.htm
And a little more language - it makes this even broader... looks like as long as it can be established that the cops "intended" to put Jude into custody - whether they put themselves on duty or not. What's funny about this is that in order to avoid federal charges, the cops might have to change their tune and instead of talking about the badge crime, might have to try to spin that they really were just drunk and wanted to beat Jude w/o reason.
[font=Arial, Helvetica, sans-serif][size=-1] Acts under "color of any law" include acts not only done by federal, state, or local officials within the bounds or limits of their lawful authority, but also acts done without and beyond the bounds of their lawful authority; provided that, in order for unlawful acts of any official to be done under "color of any law," the unlawful acts must be done while such official is purporting or pretending to act in the performance of his/her official duties. This definition includes, in addition to law enforcement officials, individuals such as Mayors, Council persons, Judges, Nursing Home Proprietors, Security Guards, etc., persons who are bound by laws, statutes ordinances, or customs.
Punishment varies from a fine or imprisonment of up to one year, or both, and if bodily injury results or if such acts include the use, attempted use, or threatened use of a dangerous weapon, explosives, or fire shall be fined or imprisoned up to ten years or both, and if death results, or if such acts include kidnapping or an attempt to kidnap, aggravated sexual abuse or an attempt to commit aggravated sexual abuse, or an attempt to kill, shall be fined under this title, or imprisoned for any term of years or for life, or both, or may be sentenced to death.[/size][/font]