If a driver suspected of driving under the influence of liquor refuses to undergo mandatory testing, several serious consequences typically follow:

• Confiscation and Automatic Revocation of Driver’s License: The driver’s license is immediately confiscated and automatically revoked by authorities. This is a common and immediate penalty designed to deter refusal and impaired driving

• Suspension of Driver’s License: In many jurisdictions, refusal leads to a license suspension that can last from six months to two years or more, depending on the state and whether it is a first or repeat offense

• Additional Legal and Administrative Penalties: These can include fines, mandatory DUI education programs, installation of ignition interlock devices, and potentially harsher criminal penalties if convicted of DUI. Prosecutors may also use the refusal as evidence of guilt, making defense more difficult

• Potential Revocation of Vehicle Registration: Although less common as an immediate consequence, some jurisdictions may also revoke the vehicle’s registration as part of penalties related to refusal or DUI offenses

• For Commercial or Underage Drivers: Refusal can lead to loss of commercial driving privileges or more severe penalties under zero-tolerance laws for underage drivers

In summary, refusing mandatory alcohol testing when suspected of DUI results in immediate license confiscation and revocation, license suspension, and additional penalties that vary by jurisdiction but are generally severe to promote road safety and compliance