Hi,
Could you please tell me whether this summary contains any mistakes?
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Thank you very much!

Treasure-hunting
This passage deals with the problem of treasure-hunting. Treasure-hunters are amateur archaeologists who, equipped with metal detectors, set off looking for antiquities during their spare time and remove them from the archaeological sites in which they are contained.
Their activity is a threat to Europe’s cultural inheritance, inasmuch as it leads to the deterioration and destruction of heritage sites. European parliamentarians have therefore felt compelled to take measures to protect national heritages against treasure-hunting.
During a parliamentary hearing held in Paris last year, amateur archaeologists were accused of damaging archaeological sites with their inexpert excavations; moreover, it was said that they should not keep their valuable finds. In response, treasure-hunters maintained the healthiness and usefulness of their hobby and claimed that unearthing metal objects prevents them from being damaged by fertilizers and pesticides.
Could you please tell me whether this summary contains any mistakes?
Any suggestions will be greatly appreciated.
Thank you very much!
Treasure-hunting
This passage deals with the problem of treasure-hunting. Treasure-hunters are amateur archaeologists who, equipped with metal detectors, set off looking for antiquities during their spare time and remove them from the archaeological sites in which they are contained.
Their activity is a threat to Europe’s cultural inheritance, inasmuch as it leads to the deterioration and destruction of heritage sites. European parliamentarians have therefore felt compelled to take measures to protect national heritages against treasure-hunting.
During a parliamentary hearing held in Paris last year, amateur archaeologists were accused of damaging archaeological sites with their inexpert excavations; moreover, it was said that they should not keep their valuable finds. In response, treasure-hunters maintained the healthiness and usefulness of their hobby and claimed that unearthing metal objects prevents them from being damaged by fertilizers and pesticides.