are not allowed actually to use chokeholds, but certain departments including san francisco and oaknd la do allow officers to subdue a suspect by a carotid restraint as it is called which is unlike a chokehold that cuts off the windpipe. it squeezes the arteries on the side of the neck to restrict blood supply to the brain. >> it is viewed as lethal force. it is one of the highest levels of force in the department. >> police officers say applying the caw -- carotid restraint is difficult and so some departments don't allow the use of either. >>> a 3.9 quake rattled the south bay. it struck after 6:00 and was centered near hollister. no reports of injuries or damage, but it was widely felt. here is the usgs shake mab and it shows where people reported feeling the quake, salinas and santa cruz and even hayward felt the earthquake. >>> a construction worker is in serious condition after falling off a roof. it happened in san mateo. police say it happened while he was working at a home on east 39th avenue. the man fell off the roof and landed in the backyard about 3:15 this afternoon. he was

are not allowed actually to use chokeholds, but certain departments including san francisco and oaknd la do allow officers to subdue a suspect by a carotid restraint as it is called which is unlike a chokehold that cuts off the windpipe. it squeezes the arteries on the side of the neck to restrict blood supplyo the brain. >> it is viewed as lethal force. it is one of the highest levels of force in the department. >> police officers say applying the caw -- carotid restraint is difficult and so some departments don't allow the use of either. >>> a 3.9 quake rattled the south bay. it struck after 6:00 and was centered near hollister. no reports of injuries or damage, but it was widely felt. here is the usgs shake mab and it shows where people reported feeling the quake, salinas and santa cruz and even hayward felt the earthquake. >>> a construction worker is in serious condition after falling off a roof. it happened in san mateo. police say it happened while he was working at a home on east 39th avenue. the man fell off the roof and landed in the backyard about 3:15 this afternoon. he was t

are not allowed actually to use chokeholds, but certain departments including san francisco and oaknd la do allow officers to subdue a suspect by a carotid restraint as it is called which is unlike a chokehold that cuts off the windpipe. it squeezes the arteries on the side of the neck to restrict blood supply to the brain. >> it is viewed as lethal force. it is one of the highest levels of force in the department. >> police officers say applying the caw -- carotid restraint is difficult and so some departments don't allow the use of either. >>> a 3.9 quake rattled the south bay. it struck after 6:00 and was centered near hollister. no reports of injuries or damage, but it was widely felt. here is the usgs shake mab and it shows where people reported feeling the quake, salinas and santa cruz and even hayward felt the earthquake. >>> a construction worker is in serious condition after falling off a roof. it happened in san mateo. police say it happened while he was working at a home on east 39th avenue. the man fell off the roof and landed in the backyard about 3:15 this afternoon. he was