The College of Policing guidelines on missing persons investigations actually said this:
"High-profile missing person investigations nearly always attract the interest of psychics and others, such as witches and clairvoyants, stating that they possess extrasensory perception.
"Any information received from psychics should be evaluated in the context of the case, and should never become a distraction to the overall investigation and search strategy unless it can be verified.
"These contacts usually come from well-intentioned people, but the motive of the individual should always be ascertained, especially where financial gain is included.
Their guidelines also say that investigating officer needs to ask how the person got the information, and any "accredited successes", specifying that this meant "previous cases where they have given police information that turns out to be correct." (And that there are none in their records.)
www.app.college.police.uk/app-content/major-investigation-and-public-protection/missing-persons/
The Missing People charity said that while they understand that families will want to try any method of getting news of a missing person:
Research based on interviews with the families of missing people conducted by the charity shows that no interviewees reported significant findings or comfort from the experience of consulting psychics or mediums.
However, if you even look at the top results in Google, you can see how it was misreported as somehow legitimising psychics.