NOPD Policy 212 makes it clear that employees of the New Orleans Police Department have NO EXPECTATION OF PRIVACY when using their employer provided email account. This is generally a true statement whether the policy says so or not. It is also generally a true statement regardless of your employer. Do not send anything over your employer’s email system that you do not want someone else to easily have access to.
As an attorney who represents police officers and other types of employees, my clients enjoy privileged communication with regard to legal matters. However, if those communications are made using your employer’s email, you will likely waive that privilege because you clearly have no expectation of privacy using your employer’s email network.