The police and the legal system in Russia wouldn't care about your dashcam if you want to get out a of a jam a bribe would work just fine (I've been pulled over in plenty of places where I had to pay dues, mostly Asia - Thailand, Philippines, Burma but it's not that uncommon in Russia and some Balkan states either), insurance companies on the other hand do like them very much.
I've also said that I personally would recommend a dash cam which records the last 5 min and no audio, this should be enough as a deterrent and will allow you to provide any evidence if required while not keeping anything on the record that could damage you.
And please do not compare dashcams to bodycams, because ?I'm pretty sure you would not want to live in a world where everyone is wearing a bodycam that is recording 24/7, or even suggest people to walk on the street while recording everything with their phones.
When you make a record of anything you should be aware that what ever you document can be used against you, or against another party at any time and that your agency to maintain the privacy of that record is limited both from a legal and practical point of view.
