I'm sorry if my comment was unclear. The person whose laptops were confiscated by the police stated that his bitlocker encrypted windows pc was also cracked by

I'm sorry if my comment was unclear. The person whose laptops were confiscated by the police stated that his bitlocker encrypted windows pc was also cracked by the police. My point was: They could have gotten the bitlocker recovery key, then found his password somewhere on the windows pc and used that to "crack" the LUKS encrypted partition.