A British Transport Police officer accused a subject of wasting police time after the subject waited patiently for police attendance to resolve a situation with a counterpart who had called police.
The subject responded by challenging the accusation of wasting police time by having the police called on them. The officer changed his story by denying the he had said it.
The subject calls this out by proposing to consult the body cam footage by Subject Access Request (under the Data Protection Act). The officer objects that one cannot make a Subject Access Request directly but rather could only do it through "a solicitor".
Is there any truth to this whatsoever, and if so, on what basis could one not be entitled to make a request that one's representative can apparently make on one's behalf?