Is an in-work suspension legal?

[hags1221]

I was recently suspended from work due to punctuality issues. As a result, I was given two off day suspensions, and one in work suspension. On this in work suspension I'm required to come into work on my required shift and work through my scheduled time without pay. I've been told this is illegal by a few people that a friend of mine works with. Is this true? Because if this is, I really don't want to let it stand. I live in the state of Minnesota and any info or links to info that could be provided would be extremely helpful. Thank you for taking the time to read my post.

[AFFA]

I wish to inform you that suspension from work, without pay (unpaid suspension), is the temporary removal of an employee from performing his/her work duties and from receiving pay, as a disciplinary measure. Employers are generally well within their legal right to use this form of discipline, especially when the employee is non-exempt. An employer can impose an unpaid work suspension on exempt employees as a penalty imposed in good faith for violations of workplace conduct rules. An employer who uses this form of disciplinary procedure must have an employee handbook or policies and procedures manual, which spells out the employer’s discipline policy and specifies work suspension as a remedy within that policy. On the other hand, if you have performed some work while on suspension then you deserve payment of wages for such work. Your employer can suspend you from work but in this suspension cannot be in the form where you are coming to work and not getting salary.

AFF