My ex husband has been ordered to pay child support and a wage garnishment was sent to his employer over 6 months ago. The employer will not obey this

Generally, if an employer is properly served with a wage garnishment and the employee still works there as an employee, you can file an Order to Show Cause against the Employer and they can be held liable for the amount of support they failed to withhold. This response is general in nature and should not be considered legal advice.