If she's just looking for something to show that she has some level of technical skill, I'd second the suggestion others have made for CompTIA certifications. They are a good base level cert - https://certification.comptia.org/

Depending upon what type of law she is planning to go into:

- A+ is targeted at basic devices and operating systems (think: very basic tech support)

- Network+ is basic networking

- Security+ is basic security

etc.

Probably the best way to start.