If the search was illegal does my case get dismissed?

This is the most common misunderstanding about suppression, and it's worth being precise.

Winning a motion to suppress means specific evidence can't be used. It doesn't dismiss the charge. The State may proceed on whatever remains.

In practice the two often converge. Where the suppressed evidence was the substance, the weapon, or the breath result, there frequently isn't a case without it, and the State drops the charges rather than proceed. That's the usual outcome in a successful drug suppression.

Where they diverge: cases with independent evidence — witnesses, admissions obtained lawfully, other physical evidence — can continue. And the State may be able to appeal an adverse suppression ruling, which extends the case rather than ending it.

There's also the good faith exception, which can leave evidence admissible even where a violation occurred.

So the accurate expectation is that suppression is often decisive and never automatic.