The work is all in the paper trail .
You can get training at the flood school ( trauma clean up)
the main points are .
Competance ( shown by attending a recognised course)
Risk assessments and method statements
Correct equipment , sharps boxes , needle pickers , needle proof boots/gauntlets, etc .
Waste disposal licence , or access to a contractor who has one .
To get a team of 2 trained and equipped would cost about 2k plus van cost .
Then you need to find the work . This work is very well paid , I carried out 2 needle pickups last year and 1 needle sweep total turnover for this service just over 3k
A decent add on service if you want to make the initial investment