In season 3 of Breaking Bad, Skyler finds out Walter is a cook, but she doesn't want to report him. Is she bound by law to report him? If she stays, she would be considered an accessory "after the fact". However if she left and still did not report his crime, could she still be liable. I am curious because of spouse privilege.
As usual the IANAL (I am not a lawyer) warning applies.
It appears that under New Mexico law (in common with many states) the failure to report a felony crime is in itself crime, called 'misprison of a felony'. It is a common law misdemeanor.
I found an example where a New Mexico resident was convicted of misprison of a felony because
She failed to report to law enforcement that [her partner] was committing federal felony offenses at their residence. More specifically, [she] admitted knowing that [her partner] was selling methamphetamine out of their residence and that he illegally possessed a firearm despite his status as a convicted felon.
Spousal privilege would only help Walter and Skyler in that they could not be compelled to testify as witnesses against each other in court. I don't believe it would protect Skyler from not reporting crimes she was aware of, if that could be proven.