Complaints may be presented in person or mailed to the City of Dallas Fair Housing Office, 1500 ManIla, Room 1 BN,. Dallas, Texas, 75201.It provides an ample amount of space to describe how you have been discriminated against. File A Complaint Against an Employee. Note, this portion of the website is only for filing a complaint against an employee(s) of the Dallas Police Department. How to File a Grievance. Click here for procedures on filing a grievance, the grievance form and the complete grievance policy. Complaint form on the court's website that you may use. If you are unsure where to file, please contact Human Resources at (214). If you wish to complain to the Board, please do so in writing.