Friend detained over money that was mistakenly sent to her account, already returned it, policenis telling us pay for release
A close friend of mine had a large sum of money (mid five figures, local currency) show up in her bank account unexpectedly a while back. Neither of us knew where it came from.
She flagged it to the bank herself as suspicious/unexplained. Eventually the bank had her sign a form authorizing them to withdraw the exact same amount back out of her account, which they did.
Months later, she traveled abroad and back. On return, she was detained at the airport — apparently someone filed a complaint claiming she owes them this money (it's alleged to originally be linked to a theft from a wealthy individual, sent to her account without her involvement).
Police have now told her family that paying the amount will lead to her release, as if it's a settlement.
Questions:
If she already returned the money once (documented via the bank), how does someone push for a second payment of the same amount?
What should we be asking her lawyer to formally request from the prosecutor (e.g., proof the funds went back to the correct party, closure of the case in writing)?
Any recommended way to verify a payment channel is legitimate before sending anything?
Would appreciate any insight from people familiar with how these cases typically unfold, especially around bank-authorized reversals being used as evidence.