CONCERNS are growing for a 39-year-old who has been missing for more than a month.
Police believe Marcus Dawson, who lives in St Albans and went missing on February 10, could be in the Rickmansworth or Uxbridge area.
Detective Inspector Duncan Sales said: We are growing increasingly concerned for Marcus' safety and well-being.
"He may not be able to obtain the medication that he requires which could affect his health. Therefore, it is important we find out where he is so we can make sure he is safe and well."
Marcus is described as being of slim build, 5ft 7 inches tall, with light brown collar-length hair and a beard.
It is not known what he was wearing at the time of his disappearance but he usually wears gothic-style clothing, a black woolly hat on occasions, black shoes and carries a rucksack.
If anyone knows where he is they are asked to call Hertfordshire Police on 0845 33 00 222.