At the end of the day they all have the same basic plot – there is an emergency and won’t you please send them some money?Rest assured, once you do send the money that is the last you will hear of them and your money.
So say you have been duped by a Nigerian scammer and you contact the Nigerian police for help.
You might get an email apparently from the Nigerian police telling you they have closed in on the scammer and need a payment from you before they can arrest him.
Like all scams, there is a last minute problem and you will be requested to send some money to ensure everything goes smoothly.
Needless to say that is the last you will hear of your apparent fortune.
Do not send money if you are in a similar situation because it is probably a scam.