score:1
your answer appears to be on wikipedia
The rank structure, organisation and insignia are similar to those used by the Metropolitan Police Service until the mid-1970s.[41]
[41] on wiki is:
http://uniforminsignia.org/?option=com_insigniasearch&Itemid=53&result=2711
which shows 3 superintendent ranks from 1954 - 1973: Grade II, Grade I, and Chief. It is plausible that 'Grade I' can be called 'Senior'.
Upvote:0
According to the official web site of the Hong Kong Police Service, on both it's Rank and Promotion page
and Organization Chart page
both Chief Superintendent (CSP) and Senior Superintendent (SSP) are extant ranks in the service.
According to your Wikipedia reference, the traditional Chinese and insignia are:
Chief Superintendent: (Traditional Chinese: 總警司): crest over two pips.
Senior Superintendent: (SSP) (Traditional Chinese: 高級警司): crest over pip.
Comparing to British Police Services, there is considerable variation in the gazetted ranks between for example Scotland Yard, London Police, and Metropolitan Police. This is to be expected, with the size and responsibility of the various services varying considerably - the larger forces having an additional rank or two at the top level.
Note that while City of London has just 5 ranks above Chief Inspector, the Metropolitan Police and Scotland Yard have 7. Hong Kong also has just 5, the same as City of London, befitting a force of similar size and responsibility. Northern Ireland also has 5, while the Isle of Man has only three. It's less about the precise names for the gazetted ranks, though the common history clearly shows, but rather the responsibilities.