The studies were centred on refuting the fear of a health hazard by referring to the findings in 1992 and 1994. The ad-hoc seminar held in November by the Department of Health was also tailored to eliminate the fear.

I disagree with the study that was conducted on eight different launch models because the health hazard was believed to have been caused by the Decca Radars on Damen Class launches which were manufactured in the 1980s. Efforts should be concentrated on these vessels.

I have consulted Dr Ignatius Yu Tak-sun, an Associate Professor at Chinese University's Department of Community and Family Medicine, who expressed great interest in assisting in the study. I really hope Senior Management would consider inviting Dr Yu to participate to improve the openness and transparency of the enquiry.

Luk Kam-hung
Assistant Divisional Commander (Administration)
Hung Hom Division

Marine Region responds . . .

Staff concerns over the possibility of radar equipment causing cancer are understood and well appreciated. Similar concerns were raised in the early 1990s and were shown to be unfounded. In order to address recent concerns the Commissioner of Police, in November, directed fresh inquiries be undertaken. I wish to emphasise these are aimed at addressing staff concerns, not 'refuting' them as stated by Mr Luk.

The two ad hoc seminars held in November were conducted in an open and frank manner. The medical officers outlined results of creditable research on the topic and explained the methodology of the study being conducted to see whether the cancer incidence rate amongst Marine officers was indeed higher than the general population. They also answered questions. The seminars were conducted in a transparent manner and were not 'tailored' to eliminate fears as commented by Mr Luk.

As part of the inquiry, the Office of the Telecommunications Authority (OFTA) conducted a radiation level survey on eight classes of vessels which covered all types of Police launches fitted with radars and radios. The survey was carried out between November and January in the presence of Marine staff representatives.

Mr Luk states he disagrees with the study because he believes the health hazard was caused by Decca radars on Damen Class launches from the 80's. I would point out the radars on all Damen Mark III launches were replaced in 1999 as part of an overall upgrade of navigational equipment on these vessels. In addition, all Damen Mark II launches were decommissioned last year. However, one of our Damen Mark I launches, which is still fitted with a Decca radar, was included in the OFTA survey. Radiation measurements taken at various locations on this vessel, and all the other vessels tested, were well below the stringent internationally-accepted requirements for both the general public and the actual operators.

The Force is being assisted by two eminent doctors - a Senior Medical Officer with the Department of Health and a Senior Occupational Health Officer with the Labour Department. As such ample professional medical expertise is already engaged in this study, it would not be beneficial to expand the medical team at this advanced stage.

This inquiry is aimed at determining whether or not there is a causal relationship between radar equipment on launches and cancer incidence among Marine officers. The inquiry is being conducted in an open and transparent manner with the involvement of Marine Region staff including Junior Police Officers' Association and welfare representatives who have been provided with copies of the OFTA report, as has Mr Luk.

Michael S. Parker
for Regional Commander Marine

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