In reality, only Allah SWT knows what's in the heart. Pure Matrimony is only a matrimonial service for single Muslims, and therefore we always advise for you to do your own checks. However, we implement a few safe-guards to help make that process easier in that we request all members to make an oath by Allah. Even non-practising Muslims generally have sufficient fear of Allah to not swear to anything they know isn't true. Furthermore, we also monitor the conversations and online behaviour of our members, and it's very difficult for a non-practising single Muslim to emulate a practising Muslim in their behaviour or language. If we find someone who falls below the standard required, our administrators then take action.