Which of the following is generally considered a best practice while handling documentary evidence? a. Photocopies are always preferable to original documents as evidence, as the original could be tampered with. b. Copies of the document should not be made and only the original document should be used during investigation and trial. c. Generally, a summary of the original document should be made for investigation and trial. d. Copies of the document should be used during the investigation and trial and should be kept in the same file where the original is kept.

Copies of the document should be used during the investigation and trial and should be kept in the same file where the original is kept. This is the best practice while handling documentary evidence.

Option: D

Explanation:

When documentary evidences are being handled by someone copies of the original document should be made and used during the investigation and kept in the same file with the original one. If summary of the original document made there might be lack of main investigation point. So, take care of it.

If copies not prepared then by any chance original document may lost and will ruin the whole investigation process. So, it is very necessary to prepare a copy of original document and use of that for investigation.

idk

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals