[[XST]O_x]

pawn Код:

enum 
{
    DIALOG_PLAYERNAME
}

//Here is the input dialog:
ShowPlayerDialog(playerid, DIALOG_PLAYERNAME, DIALOG_STYLE_INPUT, "Mobile Data Computer", "Enter the name of the person you want to get information about.", "Search", "Close");

This is the line that shows the dialog to the player (to the cop)

Well, to continue, you need an algorithm that searches through player data, so tell us how you store your data (database, files, which db/file system)