Ms. Kalmbach received her initial law enforcement training at the Regional Police Academy in Arlington, Texas. When joining the staff at the United States Department of Justice, Southern District of Texas, Ms. Kalmbach received specialized training at the United States Treasury Federal Law Enforcement Training Center, Criminal Investigation School, Glynco, Georgia, with additional training at the United States Marshals Academy.

 While with the Department of Justice as a United States Deputy Marshal, her responsibilities included implementation and coordination of multi-agency criminal investigations, warrant division, and being a member of a multi-agency federal warrant task force team working with the United States Attorney's Office, United States Postal Inspectors, agents from the Federal Drug Administration, Secret Service, United States Department of Agriculture, Federal Bureau of Investigation, United States Drug Enforcement Administration, United States Department of Alcohol, Tobacco, and Firearms, Central Intelligence Agency, Internal Revenue Service, and various county and state law enforcement agencies.

Some of her duties included the physical and personal security of courthouse facilities, courtroom security, executive protection for the United States District Courts, assignments in the witness protection and relocation program, and participation as a member of a specialized training group, training members of a government task force security team.