Hypo Cop

Hypo Copping is a strategy used when there is an investigative role with no protection. This is done by all of the town claiming cop and posting a report. This way, if the cop is killed at night, you can look back and see his report.
The Origins of this term is unknown, but it was popularized when Sex and Lies was competitive.

Controversy

Note that there is not consensus among the EM community about the effectiveness of hypo-cop. While it may seem to be helpful to the town, it can often be antitown; namely, in situations where the mafia can eliminate some people by their obviously fake reports, such as innos on them, and thus narrow down the real cop.

To a certain extent, whether hypo-cop is pro-maf or pro-town may depend on the setup. For example, in the 8-player setup of doc, cop, 4 blue against stalker and vanilla this strategy is often used when the doc dies night one. But, in that situation it helps the mafia more than it helps the town, since mafia will almost certainly know who the cop is due to info from combining the stalking report with the hypo-cop reports. If town had not used hypo-cop then the mafia would have had only the one stalker report to use in detecting the cop, and will most likely not kill the cop, leaving the cop alive to give two real reports the following day (when it is 5-player lylo).