The police in my country (Finland) would most likely accept the help, as long as the person stays inside the boundaries of the law. If the person corsses that line, then the police must interrogate the person and send a file to the prosecutors office for prosecution of said person.
The law in Finland can be pretty good for a superhero, here any person is allowed to catch a criminal, as long as it is in the immediate aftermatch of said crime (for exmaple fleeing the place it happened) and the crime can give you 6 months of jail. Don't take my word for granted here, this is how I remeber it being, might be it is "minimum of 6 months of jail", my memory is messing with me and these are small details I always remember wrong
But I guess it would be a pretty 2 way thing, as long as the person himself doesn't do anything illegal it's fine I guess.
The law in Finland can be pretty good for a superhero, here any person is allowed to catch a criminal, as long as it is in the immediate aftermatch of said crime (for exmaple fleeing the place it happened) and the crime can give you 6 months of jail. Don't take my word for granted here, this is how I remeber it being, might be it is "minimum of 6 months of jail", my memory is messing with me and these are small details I always remember wrong
But I guess it would be a pretty 2 way thing, as long as the person himself doesn't do anything illegal it's fine I guess.