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Some interesting info here on the choice of plastic bags or paper bags in collecting evidence
Evidence Collection: Paper, Plastic, or ... ? - Lee Lofland
Paper or Plastic?
here’s a simple rule of thumb for deciding which type of evidence packaging—wet evidence goes in paper containers (wet evidence can degrade if placed inside plastic containers) and dry evidence goes in plastic. Items that could be cross-contaminated must be packaged separately. There’s a rule of thumb for other types of evidence, too, and here’s a handy list for the proper packaging of those items.
Evidence Collection: Paper, Plastic, or ... ? - Lee Lofland
Paper or Plastic?
here’s a simple rule of thumb for deciding which type of evidence packaging—wet evidence goes in paper containers (wet evidence can degrade if placed inside plastic containers) and dry evidence goes in plastic. Items that could be cross-contaminated must be packaged separately. There’s a rule of thumb for other types of evidence, too, and here’s a handy list for the proper packaging of those items.
I wonder what the criteria is to using a plastic evidence bag as compared to a brown paper bag.