Mich. Comp. Laws § 45.82
A county purchasing agent shall be appointed by the board of supervisors, who shall hold his office for the term of 2 years from the date of his qualification, and until his successor is appointed and qualified. Said purchasing agent shall receive an annual salary to be fixed by the board of supervisors, which shall not be increased or diminished during his term of office, and he shall not receive, directly or indirectly, any extra compensation in the way of commissions or otherwise. Said purchasing agent shall not be interested in or in any manner connected with, directly or indirectly, any contract or bid, for furnishing supplies or articles of any kind to any of the said offices, departments or institutions of the county, nor shall he collect or be paid his salary or any part thereof while he is in any manner or degree indebted to the county or in arrears in his accounts and report as such agent. Neither shall said agent accept or receive from any person, firm or corporation to whom any contract may be awarded, directly or indirectly, by rebate, gift or otherwise any money or other things of value whatever, nor shall he receive any promise, obligation or contract for future reward or compensation from any such party: Provided, That should said purchasing agent violate any of the provisions of this act, or should he receive any rebate, drawback, profit, or benefit from any contract either directly or indirectly, he shall be deemed guilty of a felony, and, upon conviction thereof shall be punished by imprisonment in the State Prison not less than 2 nor more than 5 years.
MCL 45.82