✔ 最佳答案
If you want to say the thief had hidden in somewhere and finally俾人搵到,then it's :
'The police finally found the student who has stolen the lady's purse/wallet'
如果你想講d police finally知道邊個偷野,咁it should be:
'the police finally found out who was the student who has stolen the lady's wallet.
But there was no money left in it./but the wallet's empty.