DD is 8 months old and uses the car seat which is group 0+ (I think that's the one anyway). It's a rear facing one and one that comes with the buggy when buying the travel system.
I don't drive so this hardly get used unless I take a cab to go somewhere which is rare. DD only really uses the car seat when her grandma (on her dad's side) picks her up for the day. Today her grandma picked her up and DP took DD downstairs in the buggy and put the car seat in the back the usual rear facing way.
I'm nosy so I always look out my window to see what's going on and because the car seat is quite bulky so sometimes it's a struggle for DP to strap her in. Anyway! I saw a few words were exchanged and DP turned DD's car seat around so she was front facing and they got ready to drive off. I called him straight away and said she can't be that way in that type of car seat and they need to change her round. I said the seat belt goes around the back of the seat, you can't just have it across her lap and that he basically hadn't strapped her in properly. He said alright then changed it back the correct way. I could see his mum had a lot to say about it (surprise surprise).
I just texted him reminding him to make sure DD is always as safe as possible and to please not do that again. He said they did it because she cries when facing the seat which made me think maybe they've done this before(?) I'm planning to speak to him when he comes back (nothing serious, more of a 'you can't do that in this type of car seat' chat) but was starting to think if I've got it wrong or if I'm being unreasonable?
I don't have a car or drive so again I don't know the law regarding these things. I did have a look on Google and Gov and it seems that to be front facing you need a different type of seat and DC has to be above a certain weight but I'm starting to doubt myself especially as his mum had something to say. So tell me MN, AIBU here or just being 'precious?'
If I am, what's the correct way when it comes to car seats?