Parking Charge Advice UK
Photography tips - UK laws and your rights
I have added this page as people may be told by police or bailiffs that they cannot film them or whatever in a public place.
Yes you can.
However many (including the police) seem to belive people need permishion to film.
The basic rule is, if it is a public place you can film and need no permission to film people, however if it is a private place you do need permission.
So if a bailiff comes to your house you can film them.
By the way, unless a bailiff has correct documents, never let them in your house, and your probably best to ONLY speak to them via letterbox, or simply ignore them. And TV licence people have (at the moment) no rights to enter your house (do not even bother to speak to them).
Many police websites now post the fact you can take pics and films in public.
"Members of the public and the media do not need a permit to film or photograph in public places and police have no power to stop them filming or photographing incidents or police personnel."
My advice is to print out a copy of the law on photography or/and from the police website, and if you are told by the police or a bailiff to stop filming or that they need to give permishion, state clearly that this is not correct and hand them a copy for them to keep or at least read. As this will save a lot of arguments.
It is worth noting that if you have a dash cam, they often record people speaking in your car. Unless others who are speaking in your car give permishion, it is best to remove all sound as this can be a privacy issue (such as uploading to youtube).