This comes as today Sky News shows the first ever pictures of the HS2 bat tunnel, showing the scale and breath of the ten-figure development through the Buckinghamshire countryside and taken despite our request for permission to go on site by the government-owned company being declined.
Although often wrongly summarised as meaning "no bat death is acceptable", regulator Natural England did advise HS2 that to comply with this law, the company would need to maintain the "favourable conservation status" for the 300 bats once construction was complete.
The entire structure exists so that HS2 can comply with "The Conservation of Habitats and Species Regulations 2017" - a set of regulations which protects rare species, derives from the EU Habitats Directive and remains in force in the UK to this day despite Brexit.
A compromise plan - that would see developers pay into a single government-controlled pot - has left experts and industry figures unimpressed, saying it would not stop another bat tunnel.
For the last six months, the prime minister has singled out the most hated construction site in Britain for criticism - a kilometre-long, £100m shed to protect bats in Buckinghamshire from the high speed trains of the future.