Police chiefs promised yesterday to investigate claims that marine officers suffered a higher rate of cancer because of radiation from their boats' radar.
A marine officer submitted a report to superiors claiming that the incidence of cancer among marine police and their families was higher than that among the general population.
The officer cited six cases since 1993, including two which involved colleagues' daughters.
He said only about 250 officers served on marine launches in the 1980s.
A police spokesman said 28 marine officers had been diagnosed with various kinds of cancer over the past 10 years.
But there was no evidence to prove a link to radiation from radar.
The force has about 2,500 marine officers.
The force said a similar concern had been expressed by marine officers in the past but information gathered from medical and engineering experts had indicated such concerns were unfounded.
'Inquiries were also made with the Royal Navy in Hong Kong in 1994 regarding the existence of radiation hazards from radar fitted on police launches,' the spokesman said. 'Again, the results indicated no hazard existed.'