The Chief of Police shall disapprove any employment that demeans the status or dignity of the law-enforcement profession, or otherwise represents a conflict of interest. Examples of such employment include:

a. Retailers which sell pornographic materials, or provide services of a sexual nature.

b. Retailers who sell, manufacture, or transport alcoholic beverages as the principal business.

c. Gambling establishments not exempted by law.

d. Any firm connected with the towing or storage of vehicles, bill collecting, bodyguards, re-possessors, private investigators, or process servers.

e. Performance in department uniform of any tasks other than those of law enforcement.

f. Performance of any work for a business or labor group that is on strike.

g. Performance of any work regulated or licensed through the department

h. Performance of personnel investigations for private firms, or any employment requiring the officer to have access to police files, records, or information as a condition of employment.

i. Performance of any activity which supports case preparation for the defense in any criminal or civil action.