Upon receipt of a written report or of any other reliable information by the local health officer that any person infected with a venereal disease in an infectious stage is conducting himself or herself, or is about to conduct himself or herself, so as to infect others, or expose others to infection; or that a person infected with a venereal disease under treatment; or that any person is a prostitute, or person associating with prostitutes, and is reasonably suspected of being infected, or of conducting himself or herself so as to infect others; or that a person has been convicted in any court or municipality, or before a justice of the peace, of an offense growing out of sex immorality; or that a person is being held by any court, municipality, or justice of the peace, pending an examination for a venereal disease; or that a certain person has been reported in a venereal disease report as the source of a venereal disease; or when any other facts are brought to the attention of the local health officer having proper jurisdiction, showing that any person is reasonably suspected of being infected with a venereal disease, or is about to conduct himself or herself so as to infect others, said health officer shall at once issue his warrant or order, if the party be not already in custody, and shall proceed as hereinafter provided.