What is a SPN?
SPN stands for system person number. It is a unique, eight-digit number used to identify a person connected to a Harris County criminal case. All of the records about a particular person, including names, dates of birth, last known address, physical descriptors, and case information, are stored under the SPN and can be accessed with a SPN. If a person has more than one name on the Case Summary screen, there is no need to inquire using those names, because all those records are consolidated under the SPN at the top right of the screen. When you inquire with a SPN all available records display automatically.
