Five police officers are being reallocated to support basic command units from a specialised cold case department that was looking into the 30-year-old murder of Atek Hussain.
In September 1994, Mr. Hussain, then 32, was returning from work when he was stabbed in the heart. Before passing out, he was able to inform his family that his assailants were Asian as he staggered to his house.
Despite two targeted appeals by the police on the tenth and twentieth anniversaries of his homicide, no charges have ever been filed in this case.
Yasmin, the ten-year-old daughter of Mr. Hussain, witnessed her father's death at their house. She expressed to Sky News her hope that the Met would make a fresh appeal on this week's 30th anniversary of his passing.
"I waited and waited as September approached, hoping they'd say something but all of the officers I'd been dealing with have either retired or moved on, and it seems nobody knows what to do with me," she said.
"One person told me to call 101."
The Met told Sky News the case is not currently active. However, no unsolved murder investigation is ever closed and Mr Hussain's case was last reviewed by its Serious Crime Review Group in August.
"Should any new information come to light, it will be assessed accordingly," it said in a statement.
"In order to better protect the public, including the prevention of future homicides, we are moving some experienced officers from specialist units to bolster BCU (basic command unit) public protection teams to ensure they have the right skills, experience and capacity.
"The MPS (Metropolitan Police Service) continues to maintain a strong capability to investigate cold case homicides. No unsolved homicide is ever closed and all cases remain under review."