Can I watch Strike season 4 (jk Rowling) if I haven't seen the first 3 series?

[WeatherToday]

Just that really, I can't find the first 3 series available for free anywhere.
Thanks

Isn't it still on iplayer?
Each is a stand alone story but it's better if you start at the beginning to see how their relationship develops

@WhoNeedsaManOfTheWorld
Only season 4 on iPlayer

Yes in that the crime story is a single story, no on that you'll have missed a lot of the backstory of the main characters and their relationship.

Yeah course you can. I watched it all backward so season 4 first then 3,2 and 1 and yes it makes sense.