Comparisons? Not a perfect match of course.
http://news.bbc.co.uk/sport1/hi/football/teams/l/luton_town/7507736.stm
http://news.bbc.co.uk/sport1/hi/football/teams/l/leeds_united/6920103.stm
10 points out of the 30 point deduction Luton Town had were for financial irregularities in payments to agents. So the Football League do dish out punishment even if it is criminal.
There do seem to be some odd dealings with Pompey and agents. Mandaric, Storrie and Redknapp all have court cases for tax evasion and convicted fraudster Daniel Azougy was left advising operations.
From the Creditors document on page 5