Orpheus in the Undergrowth - S2-E2
Plot hole: When Jeremy is found dead from a heart attack, for some reason, the girls talk about him taking something that caused his heart attack, or someone giving him something to cause his heart attack. People have heart attacks all the time, and Jeremy had "a dodgy ticker", so there's no reason for them to only think it's a "suspicious" heart attack.
Orpheus in the Undergrowth - S2-E2
Plot hole: While the girls are trying to work out who killed Jeremy, Rosemary says she thinks it's Julia - Julia owns the flat that Jeremy and Marcia live in - so Laura says "Why would she want Jeremy dead?" And Rosemary says "To sell the house for a greater amount of money." But that's wrong: When someone dies in a house, the house sells for less, not more - not many people want to live in a deceased estate.
Swords into Ploughshares - S2-E7
Continuity mistake: When Laura leaves Matt's girlfriend's parent's place, her bag is in her right hand, but suddenly it's in her left hand.
Swords into Ploughshares - S2-E7
Continuity mistake: Near the end, the girls find a big box, filled with antiquities, buried in Lord Engleton's lawn. Laura's jacket changes from before digging, to having found the box, and then back to the first one as they carry the box away.
Swords into Ploughshares - S2-E7
Continuity mistake: At the end, Rosemary has her bag over her right shoulder when she gets into the Rover, but once in, the bag is gone.
Swords into Ploughshares - S2-E7
Continuity mistake: Laura is handed a cup of tea that is only half-full. But when she puts the cup down, it's full.
Answer: Regents park.