Letters CS gas has been used as chemical restraint in mentally ill person BMJ 1997; 314 doi: https://doi.org/10.1136/bmj.314.7078.444 (Published 08 February 1997) Cite this as: BMJ 1997;314:444 Article Related content Metrics Responses Peer review Related articles Letter CS gas is not a chemical means of restraining a person Published: 03 May 1997; BMJ 314 doi:10.1136/bmj.314.7090.1353a See more Trump chooses Obamacare opponent to lead Health and Human Services BMJ November 30, 2016, 355 i6469; DOI: https://doi.org/10.1136/bmj.i6469 Drug firms need to tackle affordability BMJ November 14, 2016, 355 i6096; DOI: https://doi.org/10.1136/bmj.i6096 World Medical Association’s tainted president, Ketan Desai BMJ November 10, 2016, 355 i5867; DOI: https://doi.org/10.1136/bmj.i5867 Cancer drugs, survival, and ethics BMJ November 09, 2016, 355 i5792; DOI: https://doi.org/10.1136/bmj.i5792 WHO refers $29m Oxford research project to GMC for misconduct BMJ November 07, 2016, 355 i5971; DOI: https://doi.org/10.1136/bmj.i5971 Cited by... CS gas is not a chemical means of restraining a personFulltext