
OK, just talked to her...
She first spoke to a "deputy comissioner of the jurors". She was told that there is no specific provision for nursing, but she should ask to speak to the judge before answering the selection questions.
She told the judge that she is happy to serve, but she has a "logistical issue": she needs to be allowed to pump periodically (My boss was working at the time, so breastfeeding as such was not an issue - it was all done through a pump. If your wife is nursing, her conversation will be different). At that point the judge excused her.
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Buy high, sell sober.