If you have been charged with a criminal offence, even if the charge was later withdrawn, dismissed, stayed, diversion, absolute or conditional discharge, you should apply for a file Destruction to remove your prints, photos, court and police records BEFORE applying for NEXUS.
Here is a recent update from the folks at NEXUS: Kiosk replacement in U.S. Preclearance
Please be advised that, in an effort to improve the NEXUS program, the kiosks currently available in the U.S. pre-clearance areas at Canadian airports are being replaced with U.S. Customs and Border Protection (CBP) Global Entry (GE) kiosks. Global Entry is a U.S. domestic trusted traveller program that offers expedited clearance for pre-approved, low-risk members. NEXUS members receive Global Entry benefits automatically, at no additional cost, and have access to the GE automated kiosks for entry into the U.S. at participating airports.
Expedited passage at a GE kiosk requires the NEXUS member to have their 10 fingerprints on file. If you have not already submitted your 10 prints, please visit a NEXUS or Global Entry (GE) Enrolment Center to have your fingerprints taken. An appointment is not necessary. If your fingerprints are not on file, you may still use the GE kiosk; however you will be referred to a CBP officer for additional verification.
Members entering into the United States, from Canada, can use either their NEXUS card or their registered passport at any of the eight international airports that offer US preclearance. In order to use the GE kiosks located within the United States, NEXUS members must have a valid registered passport on file. To update your passport information on line, please log into your Global Online Enrollment System (GOES) account at https://goes-app.cbp.dhs.gov/main/goes.
For additional information on the Global Entry program and more details on how to use the GE kiosk, please visit http://www.cbp.gov/travel/trusted-traveler-programs/global-entry.