Blanch your plum tomatoes in boiling water and remove the skins. Set the peeled tomatoes aside in a bowl.
Cut your venison shank in half with a bone saw or clean hacksaw (or leave whole if it fits in your cooking vessel). Salt the meat and coat it evenly with half of the cumin and cinnamon.
Peel 2 of the medium cloves of garlic.
Cut a deep slit in the meatiest part of each half of your venison shank big enough to fit the peeled garlic cloves. Push the garlic clove into the slit until it is completely enclosed in meat. (these cloves will melt into the meat as it simmers)
Heat your olive oil in a saucepan on medium heat. When the pan is hot, place your shanks in the oil and sear on all sides.
When all sides of the shank are sufficiently browned pour in your bowl of peeled tomatoes and scrape the brown bits off of the pan to incorporate.
Add the remaining 2 cloves of garlic to the tomatoes and meat along with the black pepper, mint, parsley, hot pepper and remaining cumin and cinnamon.
Salt the spiced tomato mixture, but keep in mind that it will reduce so use less salt than you think you need.
Bring the tomato mixture to a boil and then reduce the heat to low, cover the pot and simmer for 4-5 hours or until the meat is fork tender
When the meat is almost ready, add your chopped green beans and continue simmering for 20 minutes.
Once the meat and green beans are cooked and tender, scoop them out and top them with a generous amount of the braising liquid, freshly chopped mint and parsley. Serve with a side of rice pilaf and a thick yogurt like labneh or greek yogurt.