Yeah mate no worries, can you do me a favour first and use the diagnostic card on it ( if you havent already ) Gallagher are often dualfrequency.
This still wont be definative though, because I have scanned them myself and The HF and LF leds light up, but I KNOW it is only actually reading LF.
Do you have access to the admin people?
Is that something you can ask them? ( If they even know )
Have you scanned the Gallagher card with TagInfo etc. to check the HF card credentials?